If 'plan A' is the high press, then it worked well for us and to some extent still does - like in the first half against Tottenham. It's not so much that teams have worked out how to play against us, but with games coming thick and fast it's not sustainable. We managed it for a half and then started to look really tired and they took control. Danny Ings may be a bit injury prone, but he would probably not be so much if he didn't do so much chasing down off the ball, in both attack and defence. With a small squad, players are having to play through minor injuries or out of their favoured position.
It may not be a popular opinion, but my view is that the same squad and manager would be competitive again, playing in the same way after a pre-season break. But the same thing would no doubt happen, we'd have a good run, get exhausted, pick up a few injuries and have a bad run.
I also quite like the plan B that we've seen over the last couple of games of sticking Vestergaard up front and slinging high balls to him. It's something that Chris Nicholl used to do to good effect. Although doing it so late in the game can be perceived as desperation.