I summed them up from the Tactical Theorems thing on this site...
Retain - holds on to possession; to keep the ball from the opposition to hold on to a lead
Get Ball Forward - When not penetrating the opposition; when needing a goal later in the game; when playing on a large pitch
Pass Into Space - Like 'Get Ball Forward' and when playing against a side slow team
Pass to Feet - When passing is poor; when many passes are being intercepted
Pump Ball Into Box - When needing a goal late on in the game; when possessing taller, stronger forwards than the opposition defenders
Clear Ball to Flanks - When trying to hold on to a lead late on in the game; when possessing quick wingers who are good on the counter attack.
Shoot on Sight - When playing against a side who are defending in numbers; when struggling to get any shots; when needing a goal at all costs
Work Ball Into Box - When having too many long shots; when midfielders are poor at long shots
Exploit the Flanks - When the opposition are narrow; when playing with good wide players; when playing with a team who are good at crossing; when playing on a wide pitch
Exploit the Middle - When not playing with any wider players; when the opposition are leaving gaps in the middle; when playing on a narrow pitch
Look For Overlap - When using excellent attacking full backs; when needing more passing options in the final third; when playing against a weak side
Take a Breather - To slow the pace of the game; to keep players fit when in the lead; to calm the game down
Play Wider - When the opposition is attacking down the wings; when needing more space to break down the opposition; when playing on a wider pitch
Play Narrower - When the opposition is attacking through the centre; when needing to keep the game tight and reducing space for the opposition; when playing on a narrow pitch
Push Up - When playing against slow strikers; when playing against a team sitting deep; when needing to reduce the space of the opposition
Drop Deeper - When playing against quicker strikers; when playing against a team pushing up
Hassle Opponents - When needing to regain possession quickly; when playing against a slow, inferior team; when needing to reduce space for the opposition
Stand Off - When playing against a quick, superior team; when needing to hold team defensive shape
Get Stuck In - When needing to regain possession quickly; when playing against a team with little bravery; when not getting a high enough tackles completed percentage
Stay on Feet - When conceding too many free kicks; when looking to hold defensive shape; when playing against very quick players good at riding a tackle
Play Even Safer - Late on in a game when facing an onslaught
Take More Risks - Late on in a game when absolutely desperate for a goal