yes down arrows on mr/mls can work if they have good defensive stats, just buy wingbacks they are the best of both worlds
is having Dl,Dr plus DML DMR in the same formation a good idea or a waste ? since they are so close to each other . Don't people play with 3 Dcs when using DML,DMR ?
Last season at least, 3n3w(dml/c/r) had been very hard counterattacking formation to overcome. Using 212, 121, or 112 attacking up front. Low or high pressing, defensive or attacking. Works deadly against an attacking 43w12 formation.