FIFA 10

Well i did this about 2 days ago and the easiest way to do this its with Inter Milan in Serie A

why?..cause you're only playing 3 cups (tournaments) in the season. To make it even more easy... this a matter of an hour, two top.

First - Get rid off all the players below 80 transfer them to another league, preferably not Serie A or B.

Second - Add some players with 99, i would recommend 8 DEF 8 MED and 4 FOW
(consider to use all your created players to get more achievements, and you will see this as an investment.)

Third - Simulate most of your season, cause with your created players your chances of losing are mostly none.

Fourth - I do recommend choosing to play the Final on the Italy Supercup and Coppa Nazzionale,

Fifth - Take a look a the table just to avoid any last minute second spot, also check your results on Coppa Nazzionale remembers you have to play home and away.

This way at the end of the season you would have won the Trebble.

Hope this helps someone.

The quickest way to get this achievement is to start Manager Mode with Man Utd and then sim your friendlies, play and win the Charity Shield, sim most of the league schedule (make sure to play and beat Chelsea, Arsenal and Liverpool so that you can afford a few losses along the way) and win one cup (League or FA Cup are fine).

Make sure you ONLY WIN THREE TROPHIES (four will scupper the achv) and bear in mind that this has to be done with a top tier side (even if you win the FA, League and Europa trophies with a CCC side you won't get the achievement).

Pretty easy one, just play a season in the premiership and win the three cup matches, you can transfer the best players into your team and sim the matches, just play the cup matches.