Better to play mixed, inside fowards leave space for wingbacks that can make crosses or pass the ball in the middle.
The pass focusing depends on where is your attacking threat, for example : aml ,st,amr (wingers ) both flanks - aml, amc, amr , st mixed - amc st,st ( middle , or mixed if your dl,dr attack ), amr st ml left flank ( if you want to exploit hat space in specific cause oppo weaknees in that zone ect..), is our choice to choose the right one depending on our formation