Cricket needs a General Manager role who has the biggest say in the decision making, and that person must not be the head coach. (Some teams have Director of Cricket but that person is usually someone of similar background as the head coach even when the requirement of the role is completely different. The major ask here is strategy.) The head coach who's always someone who has played a lot of Cricket is a great choice for player improvement, technique and getting the best out of them. But a GM needs to be a tactical and analytical mind, not necessarily with the playing requirement. In fact, a lot of managers were not players themselves in other sports. Take RCB for example, Mo Bobat's role is exactly what T20 teams need. They've Andy Flower as the Head coach and Bobat in a Director of Cricket role.