oh my God...
use search functions to list best players, save as shortlist, import it in FM, use your assistent to filter out unrealistic signings, then approach best of the rest you can afford
Or scout your team and decide which man should play, and which one should be sacked
Hovewer I advice no to use is so often, because you can be bored with FM very fast
I use it and it's my choice to cheat, FM is big fun with it. Hovewer I never use any edit function nor any editor because it ruins game very fast.