Variety is typically more instructive than repetition. A top performer who has made pitches to important prospects, for instance, might next be given an assignment to repair a troubled client relationship.
When making assignments, guard against a desire to keep giving certain tasks to people who’ve already mastered them. It can seem like a safe way to ensure good short-term results. But if you do it too often, you risk creating an environment where some employees feel stagnant and others feel ignored.