4-5-1 flat, what's the most effective counter?

[Morgan O'Bree]

3-6-1 maybe works, the key to win the match is your 6 midfielders...

whenever you use only 1 st against 4 defenders you lose possession and field pressure (bar). To absolutely avoid. 1 st works best vs 3man defense. In any case, of those 6 mids at least 2 should play ams.

As for a counter, 3-5-2 V or 4-2mc-3am-1 might work.