As I said in another post, we don't need a prime level Parker to be successful with this team, and my example was the modern repeat Lakers who had Derek Fisher as their starting PG, who was even worse on offense and defense than Parker (although he did provide 3 point shooting). Like those Lakers, these Spurs will be able to kill teams with their length, rebounding, post game, and mid range game. Even Parker seems to be doing better with the increased spacing LMA provides. The only concerns are dribble, dribble, dribble and his defense liabilities. I think he'll adjust the former and the latter can be masked with all the great defenders he has around him.
He's not the concern he was last year for me since he has to carry a much less load now with LMA being on the team.