Absolutely, working with pull hitters to drive an outside is fine, just don't rework their bread and butter. The part that Gladden is spot on about is the point that no one is muscling Willingham into being a "spray the ball the other way" guy and nor is the team trying to force Mauer to yank the ball for power. Let a guy be who he is and work to improve that rather than tearing the whole thing down to start over. I think we're seeing that with Arcia - they aren't telling him to tone down his swing, but they are trying to position his hands better and working on pitch recognition. That, to me, is perfect. 10 years ago we might be trying to force Arcia to slap the ball for singles to left. It's been a welcome change.