What to do with try hards

Just wanted to see opinions of others that have try-hards reporting to them. In this context a try hard is usually someone with excessive enthusiasm and effort, but also never uses it successfully, always jumps the gun on things but incorrectly, or someone that always spends excessive amounts of effort on the stuff that does not matter. When they come to visit or talk the first thought is "calm down Skippy". It is a lot of effort to continually redirect those people in the correct path.

Adding: to add more to a "try-hard", it's not the eager, motivated, engaged, or even the ADHD that I am referring to. It's the ones that constantly try for the c-suite without looking at the "met expectations" of the current position. Constantly having to coach and redirecting back to the core task because it is not getting done. Some responders even forget that not every position or company has excess and new tasks to assign people on a whim like the leadership guidebook would suggest. I see a lot of the comments and realize only a few responders have actually had a try-hard.