Well if you think that wingers are only there to cross the ball than you're wrong. This system needs wingers that can dribble past defenders with pace, get as much closer to goal as possible and either shoot or pass the ball to the striker for a tap in. We do not have such players. Downing is a classical winger that is there to cross the ball and find a target man. The guy can't beat defenders. Sterling, although he fits the module, is still too young, and we're not willing to play Assaidi. And that's about it, that's all the wingers that we have and none of them are good enough.
The reason Scott Sinclair did so well in Swansea with Rodgers was because he's the perfect winger for that system. He's fast, he's got pace and he can beat defenders in order to get closer to goal. That's exactly the kind of players we should be looking for. In fact, I wouldn't mind if we go after Sinclair himself in this transfer window or the next.
Bottom line is, wingers that match our system with their style of play is what we need the most. I mean, just look at the stats. Suarez has scored 13 goals this season, only van Persi has scored more. How many goals have our wingers combined scored this season? How many assist do they have? Well I can remember both Downing and Sterling scoring only one each. So obviously our problems with scoring aren't coming from our strikers, but from elsewhere. If you guys think that just by trowing strikers in (even though they might be out of position) we're going to start scoring more goals then you are very wrong. I don't mind buying a striker as a back up for Suarez, but I think that we should first address more urgent matters.