No one said anything about not having another pitch. As previously discussed any other pitch should compliment the FB, which we all know should be the primary pitch for any pitcher.
I was responding to the statement that "one can't get anyone out just throwing a FB, unless you throw gas", and that is not always the case. If you throw it right down the pike, it's gonna get hit. A pitcher can use his 2 seam with various grips for movement to make the ball do many different things, and if you learn to sink it, you get people out that way, no? Some can do the same with their 4 seam as well. So if you can do these things with a FB, why does an 11 year old need different grips for a curveball?
One statement you made, he threw the pitches that week that were working (?), which varied week to week? Why wasn't he just learning to get really better at one pitch and make it work every week? Then he could move on to the next? IMO, I do beleive this is the model used by most coaches who work towards developing pitchers, not developing throwers.
If a pitcher learns from an early age how to make his FB work in different ways, he can use those pitches to get people out before even learning a second pitch, we all know by the time he reaches a certain stage he needs another pitch. The more that a young pitcher relies on other pitches to do other things, the more his FB development suffers.
I think in the location topic a good bullpen routine for pitchers was suggested by Jerry Weinberg.
Not sure about the OQ to begin with, bullpens are completely different than batting practice because all pitchers are different.
Infielddad, thanks for posting JW's suggestions.