The coaches job is to coach. The athletes job is to run. Sure a coach might be a race “plan” but plans get messed up the second one other athlete interferes with it. In a race you must be fluid and respond to every move whether it goes with what you or your coach thought was going to happen or not.
Giving extensive race plans in a sign of insecurity in your athlete or their fitness. The body knows what to do when it is ready, it is up to the athlete to recognize when to make moves and use their bodies strength to their advance in the race. There are seldom times a coach has anything to do with an athlete after the gun goes off. Occasionally, usually during an XC race, a coach will be able to tell an athlete what place they’re in, or how far is left from the finish to start their kick. All the yelling and screaming that many coaches do to close the gap or run faster is useless. The athlete already knows they need to do that.