Hello, I've recently been really struggling with tactics and formations and I need some help where possible! Playing a 4-2-3-1 which seemed the most solid but hasn't worked too well recently so I'm considering a 3 at the back system, but that means I have to sell the likes of Azpilicueta, Bellerin and Guerreiro for more centre backs. Any advice on that? And any tips on what to set my tactics as? Men behind ball, offside trap, attacking, down both flanks....etc? Would be very appreciated! Cheers.