Remember at D3 especially with the academic schools. Some you may need a coaches tip or support to get into the school if you do not have the academic chops on your own. Most of the NESCAC schools and quite a few others. These are the type of D3's that Stained Oblique is posting about. If you need a coaches assistance ti get into the school, and you cannot get into it on your own, or you are not a sure fire candidate to pass through admissions, when a coach offers you need to seriously consider it. Coaches have a limited number of athletes they can support through admissions at these types of schools. A coach is not going to give up one of his tips waiting for you.
At other D3's, where there are not roster limits, or flexibility in the size of the class . If you are their number one, or near the top of the list, you have plenty of time. I seriously doubt that a coach, in this situation, would tell a player, "sorry were full" because their number 3 player at that position "committed" . If the schools want you enough they will wait.
And a stud is a stud is a stud. If the coach thinks your a stud and he has a shot, he will wait.