I personally think Kolarov is showing signs of being more than good enough. He offers tireless running and is a constant out ball on the left. His crossing is good, as good as any full back, yes his shooting is erratic, name me an attacking full backs who's isn't.
His free kicks have been and are dangerous as are his corners.
Remember he has only really been available for half the season, and has improved a lot come the spring.
I hear people asking about his ability to defend in big games or against top opposition. Well I give you his performance in the derby at Wembley. He was absolutely rock solid, and valuable going forward. Throughout the game he saw off the threat of Nani, Park and Valencia whom all had a shot at him throughout the game.
Again we seem not to be able to give players time. I think Kolarov will be very good next season, he will at times be exposed due to our formation, but that happens to all left backs, see Evra or Cole when a 433 formation is being played.
Defensively I think we are very strong, hence having the best defence in the Prem. We have 2-3 very good rights back, Richards being excellent on his day, Kompany, Toure, Lescott, Boyata and Boateng whom have all looked very impressive when they have played centre half. Boyata and Boateng look excellent prospects and Lescott has been outstanding since his prolonged stint in the side. Kompany is indeed world class.
Left back I think Kolarov will be decent, and we have Zaba as cover and Germany's world cup left back as third choice.
I don't want Cahill or Baines, I see them as backwards steps, I would only look to introduce good quality young players be it domestic or continental.
The kid from Ajax looks promising, as do a few in the EDS & U18's.