E.G. If you click on the striker and then wer its says positions top right it show you is 3 best positions click on one of the three or click attributes at the top highlight key attributes for role and then find the role you want and it will tell ya the attributes needed for that role.
Looks a nice tactic, I have the editor so I can make the tactic fluid in 2 seconds, And my first match using this tactic 4 0 home win, 62% possession 23 shots to opposition 1, o the other player sent off