Well, if you look at the whole season, it's pretty obvious that we've been lacking at times, going forward. So not yesterday. First of all, we should look to improve on Riera and Babel (although the first-mentioned should stay on), as they have been the players generally not delivering the goods when needed. Secondly, only having Xabi and Mascher as seasoned, very high class centremid options have at times caused problems with keeping balance, keeping the attacking platform intact. Either Lucas manages to take another step in his development (with added competition from Spearing) or we need another seasoned player to come in. Those are the key areas we need to improve IMO. Ofc we need some competition for the right fullback position.. but that, is a lesser issue and an issue that possibly could be solved by bringing forth some of our own.
I don't know wheter N'gog will go out on loan or if he will stay on, but he has been good enough as a backup for Torres in the second half of the season (not only because Torres has been less injured, but because N'gog have taken strides forward the whole season).