I would not be surprised if Drake and Vrabs have had conversations about holding him to an incredibly high standard, because the team goes as he goes.
The last thing you want to do is build up any type of animosity with the face of your franchise, and Vrabel knows that.
Again, I wouldn't be surprised at all if the two of them have had conversations about this.
So maybe, Drake didn't say "don't give me game balls", but I can only imagine they discussed this and it's understood with Drake, that he is "the guy" and him not getting game balls is no slight on him, because they believe in him so much and greatness is expected.