I forgot to mention another great feature - The Stamina Bar. This thing is extremely important. Over the course of a match, a player's stamina bar decreases, and this makes him run slower, etc.
So bringing on a sub can make an enormous difference, as he would be against tired players. This actually makes a big difference, when I brought on SWP, he was literally running rings around poor old Thuram and Cannavaro!
Also, I suggest playing the game in the Wide camera angle. Its much easier to spot gaps in the defence, and to look for an unmarked player. This is especially important as breaking through the defence is really tough.
So bringing on a sub can make an enormous difference, as he would be against tired players. This actually makes a big difference, when I brought on SWP, he was literally running rings around poor old Thuram and Cannavaro!
Also, I suggest playing the game in the Wide camera angle. Its much easier to spot gaps in the defence, and to look for an unmarked player. This is especially important as breaking through the defence is really tough.