Watched the game on TV last night so only saw what the BBC showed i.e. a fairly narrow view of the play. That said, we have become far too predictable as many others here have said.
With the better teams able to nullify our wing play, Graham is effectively isolated. The best chances last night came from quick (forward) passes in the centre of the pitch. I'm sure Morton will have learned from last night if they didn't already know, and Saturday could be a difficult game to win.
Even if we make the play-offs, the chances of promotion are probably equal to the square root of bugger all, and so perhaps the time has come for Doolan to show some initiative and change the tactics, probably in preparation for next season.
That means jettisoning some stalwarts and strengthening the mddle of the pitch from the defence to midfield to broaden our attacking options. If that involves risk so be it: Doolan should now play the long game and prepare for next season.
How he does that will be a good measure of his managerial abilities.