Rubbish. The figures speak for themselves, he spent what he did and we were pushing fourth - and not lower than 6th. Since then we are a nowhere Club who will be lucky to stay in the PL. One day - if we are very very lucky - we might get someone else who will 'underacheive' to that extent - but I doubt it. With the money he spent, 6th is hardly an achievement, especially when you consider Everton would regularly finish above us despite their obvious financial difficulties.
Where are we now ? Say what you like and criticise but we hadn't done as well as regularly before and we certainly aren't now. Just because we're not doing so well now doesn't suddenly make him a good manager.
How much money did City spend before they managed to qualify for the Champions League? Bare in mind they started off with a much better squad than we had too as well being a more attractive prospect for players to join too. Think half of our fanbase underestimate how difficult it was to crack the top 4 at that time, just as Lerner did.