While its true that college coaches are probably looking for insights into players makeup that are not readily apparent, I think high school and travel coaches must be careful.
Similar to when calling companies for a reference on an former employee...often, it is what is NOT said that is most interesting.
I am not suggesting that high school/travel coaches not be truthful....but college coaches should make the decision on a kid and not have the decision made for them. The reality though is that hs/travel coaches develop relationships with college coaches over the years and - like in business - the college coach depends upon the hs/travel coach that they know so well to tell them "you want this kid" or "stay away".
There is no question it is a very tricky situation.