We weren't exactly terrifying teams even when things were going well. It was fine margins, one touch of quality in 90 minutes. When you are playing at 51/49 margin then it doesn't take much e.g. confidence loss, to tip it the other way.
But more recently
1) Wright has been horrendous since returning, a definate drop from Sanderson.
2) O9 has been found out a bit and is probably questioning himself more now.
(So centre of defence is not good at present)
3) Our one tactic of getting it onto Wykes head has been stopped to increasing degrees by the opposition.
5) Jones looks poor at present. Mcgeady had been wandering around doing nothing in the middle rather than left wing.
5) We have no other creative element to our game. Nothing, not a single other thing. We did previously have a spectacular goals tool in our toolbox to bail us out, but with Maguire shunned and Gooch not really producing magic that's pretty much gone.
6) The constant formation changes and team changes would be difficult for a top class footballer to handle never mind L1.
But really, there's only number 6 that the manager can do much about. I am as perplexed as anyone why he won't play 433 when looks great for us. However I think he will in the playoffs
So overall, a just above average one dimensional team has injuries and confidence hit and results suffer