Two different jobs, often two different people
Winning work and running it require different skills and are frequently done by different people, which is entirely normal and not a criticism of anyone. The problem is only that a buyer forms an impression of the provider based on the first person and then deals with the second. Establishing early who does what prevents the disappointment that follows from an unexamined assumption and it costs one question during a conversation you were already having.
Ask the question plainly and without implying anything by it. Who will I be dealing with in three months, and about what. A provider with a clear structure answers immediately: the account manager for commercial matters, the supervisor for site matters, a coordinator for scheduling. One who has not thought about it will say that you can always call them, which is a different sort of answer.
