Most important attribute is STAMINA for the two DMs as they will be moving up and down the field all the time.
Also your WBs need good CROSSING as they will provide many assists.
Finally as this is counter attack tactic you will get 95% of your goals from the STs so they must have good ACCELERATION, PACE and FINISHING.
Attention: This is an UNDERDOG tactic. Will not work well if your team is favorite to win the league.