Getting 1.2 may make you feel a little bit like it's Christmas. Tactics skills are being taken out of the game in 1.2, but you will be refunded the points you spent on those and can look forward to a real spending spree:
The Roaming adjustment determines how many players are assigned a free role and encouraged to roam into space rather than stick to their position.
Initially it sounds like creative freedom, but whereas creative freedom is allowing the players to make decisions individually on how much to stay with their tactics, Roaming is more of a simplistic freedom tactic, so I'd suggest using high Roaming if you're trying to create a 'Barcelona' style of play.
Alex it's the bottom most option of the team tactics.