He can't play the High-line system. It's pretty clear to me that Ivanovic is the most solid defender we got (who can play the system). Yet, we haven't got the players to play the high-line so it does puzzle me why we continue to use it. Fair enough experimenting in the Carling Cup, FA and maybe some games in the EPL against the "smaller teams" but - to play it against Liverpool, Arsenal, City, United etc. will just leak goals left right center. We either need to revert, adapt quicker or wait till the next transfer window - ideally it's too adapt, and actually play like AVB would want but is it worth it.