GK are the most important position....If you have a good GK then its half battle won...A good GK will always make 1, 2 saves per game which is enough for winning...
I had an awesome GK because of him I won the League fairly easily conceding 6, 7 goals...
Won the CL because of him only...He made crucial saves in every game...Final went to penalty shoot out and he saved 2 penalties...
Also reached the CUP final because of him......
While searching for a good GK, look for these attributes...
1) Either Footed...
2) Big Height......
And once you have recruited him max out his defense......