I guess. But I think we tried but it simply didn't work. Tried to move Zab but couldn't. Tried to get Perez and that also fell through.Who said anything about getting rid of all 4? Stop building the straw man, lol.
Even one top drawer left back, with Zab and Sagna covering right would have seen a huge improvement.
Its better to get the type of players You want in whatever position you want than it is to get someone you don't want at a need position.
And while our fullbacks were not great, our 2 biggest issues this season was Bravo not working out and our profligacy in front of the opponents goal.
Would better fullbacks have helped? Absolutely. But probably not as much as an in form goalie or a more clinical attacking crew.
And a side issue to the above real issues, is the continued problem of carrying too many injury prone players.