Here's a tip:  Don't forget to check out the Pitching Articles section on this site.  Brent writes a new one every few days and they're excellent.  The one that prompted me to put this in the tips is called Pitching Velocity Before Ball Movement.  It amazes me how often I hear about movement from pitchers and fathers (ok, mostly fathers).  When a father tells me his son has a lot of movement it's a lot like saying your blind date has a great personality.  You know they're leaving something out. 

As Brent says in the article, nobody recruits movement and the pros don't sign movement – unless it's accompanied by velocity.  In fact, my experience is that lots of movement in an amateur pitcher is usually just a flawed delivery that keeps him from throwing hard.  And amateur pitchers usually have no control over their movement, which negates it anyway. 

I think guys who say velocity doesn't matter are just admitting that they don't know how to teach it.  They always use Greg Maddux as the poster boy for big movement/low velocity.  Greg Maddux had a major league fastball – low 90's until late in his career.  And I don't know this for a fact, but I'm willing to bet he was a power pitcher when he was in high school. 

I sometimes hear people criticize high school pitchers who throw it 90, but it's "straight as a string".  I'll take a whole staff of those guys.  Give me a pitcher who can throw it hard and put it where I tell him to, and I'll teach him how to simulate movement by moving the ball around the strike zone.  Years ago I read in Golf My Way that Jack Nicklaus learned to hit the ball hard first – then he learned to control it.  That's the approach I take with pitchers.  It's a great article – check it out.