Idk really. Judging by his gesturing it looked like he didn't like that they were relying on him scoring and having to playing defense at the end. He probably wanted to be able to stay up top for a counter to keep them honest.
I also don't think he liked the subs. The team was clicking. Stamina or not, Lampard, T-Mac, Harrison to Poku, Lopez, White was a big drop off.
I really appreciate his heart and desire to win, but watching it back later...it was almost embarrassing. 3 points against a tough team, after a long break, with a man down at the end, all DP's on the field contributing, Jack showing great promise...there were many positives. Maybe voice your complaints in the locker room...but him sitting in the middle of the field pouting like a 10 year old was too much. I have to imagine that PV had a talk with him about it. He's called him out on his complaining before, so this must have angered him.
I know many of you loved it, but it's just my honest opinion.