I can sum it up quicker.
If the wingers are playing behind the full-backs Gross is going to be 'poor' because he has 3 players marking him out of the game.
I'd suggest the games that you believe Groß was poor absent and anonymous will coincide with games where the wingers were poor, absent and anonymous.
No amount of quality can cover for the absence of the 3 other attack minded players.
Oh god I'm all angry again.
Reading that my instant thought was:-
'Well Tomer was looking like he'd get his groove on, until that 'stamp'.
Matey chops will be playing for Arsenal, this weekend, after committing an assault.
Tomer had to sit out 3 games, which, in hindsight, pretty much ended...