This was the formation I used seasons and seasons till last year, when I changed to 4-2-3w-1 and I will recommend you play with wingers as seems that generally work better now.
I guess your problem is a individual problem with players so, to see how they are doing if you can share the page with the team stats that have the info' of goals scored, assistances and MoM of all players, this is the info that need be valorated.
Formations + combinations of orders, all can win the treble with the correct players, this is my theory and in this I based to valorate these things.