This tactic is the best I have used in this FM 2015. With this tactic you'll be able to generate a big number of chances and fairly good possession.
I started using this tactic while I was in Q.P.R. and finished 3rd in 1st season.
Then with Man UTD I won Premier League, FA Cup, Capital One Cup and Champions League in one season.
Later I tried it with Wrexham and showed me that this tactic works even in lower leagues.
Here are some pictures of tactic and results:
Image may be NSFW.
Clik here to view.
Image may be NSFW.
Clik here to view.
Image may be NSFW.
Clik here to view.
DL-complete wing back-atack
Shoot less often, more risky passes, cross aim center and run wide with ball
DR-inverted wing back-support
shoot less often and pass it shorter
DC are both central defenders-defend
left MC-ball wining midfielder-support
shoot less, dribble less, shorter pass, fewer risky passes, cross less
right MC-roaming playmaker-support
shoot less, shorter pass, move into channels, cross less
AML-winger-attack
shoot less, shorter pass, cross near post
AMR-winger-attack
shoot less, shorter pass, fewer risky passes, cross near post
AMC-advanced playmaker-support
dribble less, shorter pass, move into channels
ST-advanced forward-attack
shorter pass, fewer risky passes
I started using this tactic while I was in Q.P.R. and finished 3rd in 1st season.
Then with Man UTD I won Premier League, FA Cup, Capital One Cup and Champions League in one season.
Later I tried it with Wrexham and showed me that this tactic works even in lower leagues.
Here are some pictures of tactic and results:
Image may be NSFW.
Clik here to view.

Image may be NSFW.
Clik here to view.

Image may be NSFW.
Clik here to view.

Player roles are:
GK-defend and nothing elseDL-complete wing back-atack
Shoot less often, more risky passes, cross aim center and run wide with ball
DR-inverted wing back-support
shoot less often and pass it shorter
DC are both central defenders-defend
left MC-ball wining midfielder-support
shoot less, dribble less, shorter pass, fewer risky passes, cross less
right MC-roaming playmaker-support
shoot less, shorter pass, move into channels, cross less
AML-winger-attack
shoot less, shorter pass, cross near post
AMR-winger-attack
shoot less, shorter pass, fewer risky passes, cross near post
AMC-advanced playmaker-support
dribble less, shorter pass, move into channels
ST-advanced forward-attack
shorter pass, fewer risky passes