Without Henderson (the best target man in the Championship) we have no attacking threat ,if he had been fit for the play off final we would be in the premiership now.
Given that he was completely ineffective in the League game at Burnley the previous month, which unfolded tactically in exactly the same way as the playoff final, I have a very hard time believing this.
(As an aside, one of the things that still grates about the playoff final is the fact that Burnley shut us down in exactly the same way as in the Turf Moor match and Blackwell did not have the nous to (a) realise this was going to happen and (b) do anything about it when it did happen).)