This thread has kind of lost its way, but my two cents are as follows -
One has to ask the question what type of defender does Mourinho want and what does the team need (and also analyze what the team lacks)
Firstly, Jones, Bailly, Smalling and Rojo are still not proven CBs at the highest/CL level and display proclivity for rash challenges
Most of them esp Jones are unreliable in terms of injuries and are in and out of the side
None of the CBs (except Bailly and Rojo on some occasions) can consistently pass the ball well from deep positions
To put it simplistically, the problem is we have too many pretenders for the title of the new Vidic but we dont have a Ferdinand
Therefore in my mind its clear we need a player who is can be a permanent fixture - a calm head, experienced and has the ability to pass the ball reasonably well. Gimenez is not that player. Hes young and rash and his passing ability is sub par. Its very tempting to buy a promising player in a cut price deal. But why buy a player who we dont really need unless we sell one of our defenders.
ideally bonucci, alderweireld or alternatively van djik, or koulibaly are the way to go.