Check out the last two postings on the topic "Velocity".
There are two reasons, among others, why this web site attracts some of the best baseball people there are.- Coach Paul and LankyLefty.
I strongly suggest reading these two gentlemen, how they approached a subject, rationalized each to their own, and were gentlemen about it.
So, if you're a coach - at any level and at any position in your career, this is how we handle debate, conversation and subject matter. Like gentlemen.