Sven was still figuring out his best side when he got fired. I feel he would have got there eventually.
He would also have provided a level of consistency to the system we play, the players we play in it, the tactics, etc etc.
For better or worse when Sven was sacked we had to go through a massive adjustment period, during which the results were very poor. Had Sven stayed, instead of spending xmas shedding squad members, changing formations and implementing a new style of play we would have had a more settled side, and therefore more points.
This isn't a debate about whether Sven is better than Pearson, it's a debate about whether our position is better or worse than it would have been had Sven been retained.
And I still don't get the mentality that Sven signed a load of shit. Some of his signings have been pretty good.