Personally I don't care what Hart has won in the past...sorry, what City have won in the past with Hart in goal.
He's not in decline either, he was never very good, and Guardiola was quick to realise that Hart is a limited keeper. His positioning is poor, his distribution awful, his handling poor, decision making poor, command of his area is poor despite being very shouty. His shot stopping is ok but he has no real talent for being a keeper other than being 6' 3" and professionally coached. Generally a good keeper looks even better in a poor team with so much to do, he couldn't make it at Wet Spam or Burnley and Spam had no-one of any quality to push for the No.1 spot.
As I said previously, he's a waste of wages. And what pisses me off all the more is people saying he will only play in the league cup or some shit, whilst we are apparently clamouring for a trophy!