April 8, 2026 – 7 min read
by PDG Content Team in partnership with Matt Sample
How do pharma companies coordinate between sales reps and MSLs without violating compliance? Coordination between commercial and field medical teams is legal and effective when it operates at the level of engagement cadence rather than content. Reps and MSLs can share awareness of each other’s visit timing and surface medical information requests without crossing the promotional firewall. What it requires is a leadership decision to build that infrastructure deliberately — and most organizations never make it explicit.
Imagine this scenario: A sales representative walks into a physician’s office and the physician says, “someone from your company was just here.” The rep looks like a deer in the headlights. They have no clue who. The sales representative wants to know — what did they look like, what were they there for? The next minute is spent trying to figure out who it was and what they were there for. In pharma commercial organizations, this happens more often than you think — and it essentially kills the interaction. What was the objective is now lost in a game of guess who.
Commercial and field medical teams call on the same physicians. Whether those physicians experience that as one coherent company — or as two separate organizations that happen to share a logo — is a leadership decision. According to Veeva’s Q2 2025 Pulse Field Trends Report, when coordinated, pre-launch field medical education has been shown to increase new patient treatment starts by 50% in the first six months of a launch. That outcome doesn’t happen by accident. It happens when there’s a strategic vision identified and communicated within the organization.
The compliance firewall is the deliberate structural separation between commercial and field medical teams in pharma. It exists to protect the MSL’s scientific credibility and must be maintained, not eliminated. The leadership challenge is building coordination within that boundary, not around it.
The separation between commercial and field medical is intentional and necessary. Commercial engagement is inherently proactive. Reps are hunting, knocking on doors, building territory relationships, making calls across the full prescriber base regardless of decile. Field medical operates on a fundamentally different rhythm. MSLs carry a refined list of thought leaders, KOLs, and key academic accounts, building those relationships proactively over time through scientific exchange. But they’re also reactive in a way commercial never is: when a rep submits a medical information request because a physician asked a question the rep can’t answer, the MSL’s next visit shifts from proactive outreach to a focused scientific response, sometimes pulling field medical into an account for the first time even if it wasn’t on the KOL/KEE list.
That distinction matters because the MSL’s value to the physician depends on being a peer-to-peer scientific resource: credentialed, independent of promotional objectives, and oriented around patient outcomes rather than prescribing behavior. In the pre-launch work I do with commercial teams, the most common mistake I see isn’t intent to blur these roles—it’s the assumption that the firewall means no coordination at all. It doesn’t. The firewall governs what each team communicates in front of the physician. It doesn’t prevent both teams from knowing the other is showing up.
The gatekeeper who stops at the front desk doesn’t read the credentials behind that person’s name. They see someone from a pharma company. The MSL’s scientific credibility has to be communicated and reinforced at the point of entry, every time. When that independence is compromised, even unintentionally, the relationship can be compromised.
Commercial-medical alignment in pharma most commonly fails not because teams are unwilling to coordinate, but because no one in leadership has made the coordination requirement explicit — and without that, both teams default to staying in their lane.
The organizations that get sales and medical affairs alignment right build deliberate clarity about what each team can and cannot do — then hold their leaders accountable for the coherence of the experience a physician receives.
The best version of this looks like a GM or SVP who oversees commercial, and whose peer leads field medical, sitting in the same room and making the intent visible. The patient and the customer are at the center, and the way we organize around them reflects that. When leadership makes that explicit, it shapes how the people below them think about the boundaries.
Research from Korn Ferry found that 73% of physician interactions are unsynchronized across medical and commercial teams — a statistic that reflects how rarely the leadership condition above is actually met.
One of the most effective tools for this is a scenario-based workshop: getting the full care team, in a room together and walking through real situations. Can the rep walk the physician over to the MSL at a conference booth? Can the MSL follow up on a medical inquiry without explaining what was discussed? These aren’t trick questions, but they feel like it because nobody has ever drawn the picture in front of both audiences at the same time. When they do, the answer is sometimes “yes, actually, you can” and seeing compliance function as an enabler rather than a conversation-stopper changes the working relationship between the teams.
The organizations that get commercial-medical alignment right build deliberate clarity about what each team can and cannot do — then hold their leaders accountable for the coherence of the experience a physician receives.
When a rep knows their MSL counterpart is planning a visit on Tuesday, they have options: stop into the office/account on Monday to drive the commercial message and mention the follow-up visit, or give the MSL space and stop in the office/account Thursday to reinforce their organization’s strategic partnership and the account/physician’s importance. Neither requires knowing what was discussed. Both show the physician that the organization approaching them is coherent. Awareness of the engagement cadence, even without content sharing, changes how the customer experiences the company.
The silos that prevent this coordination don’t form overnight. But they do compound. Once commercial and medical start operating from a fixed mindset of “that’s not my lane,” pulling them back together takes a leader with a clear vision and the willingness to make it uncomfortable. It’s much easier to build the infrastructure before the walls go up.
When a customer engagement strategy (the way you show up, the questions you ask, how you move from gatekeeper to physician) becomes the common foundation for both commercial and medical, the care team stops being a simple org chart construct and starts being a functional reality. Physical access, patient access, and account coordination become problems that the full team can solve together, rather than problems that fall to whoever is standing in front of the physician that day.
These two worlds aren’t going to merge, and they shouldn’t. The differences between commercial and field medical — the proactive hunter versus the scientific peer, the reactive inquiry responder versus the territory manager — aren’t problems to fix. They’re features of the model and the unique roles.
The leaders who understand that don’t spend energy trying to eliminate those differences. They build the conditions for two distinct, credible functions to serve the same physician as one coherent company.
Like Herb Brooks said: “It’s the logo on the front of the jersey that matters. Not the name on the back”.
Matt Sample is a Solutions Architect at Performance Development Group, where he partners with pharma and biotech commercial organizations on product launches, customer engagement, and field team performance.
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