um, no. dirk already did plenty of driving and was highly effective at it well before avery (just watch literally every playoff series before then, especially in 03 and look at how nicely balanced dirks offense was). avery just forced him to do it relentlessly, and in doing so he severely limited the things that made dirk so unique such as his 3s and midrange postups, while carlisle encouraged it (and is the one who really pushed dirk to perfect the 1-legged fade). incessant driving with dirk hurt the mavs badly in series' against houston and phoenix in 05 and was arguably the biggest reason for losing to GS, because avery never helped him develop a set of moves to punish defenses that would trap him on his dribble. in fact, i was at game 5 against GS where they made that big late comeback, which a lot of that was because dirk finally went back to bombing 3s and actually using his size to his advantage, instead of just trying to iso and drive drive drive like avery wanted. even against miami in 06, it was clear that they keyed in on that as well. if he had a counter move in 06, the mavs ring no matter how bad the officiating was or wasnt. but no, avery was far too narrowminded to think outside of his own box.
i think there is far more argument that avery was detrimental to dirks development, and nellie exposed that massively in 07 when showing the world that dirk had made virtually no improvements to his game in the 2+ years after he left the team. then as soon as rick arrives, that very season dirk perfects one of the most iconic shots in NBA history. that falls heavily on avery being a trash coach and trash at player development.