Step 1
Browse to the following directory...
Steam Users
C:\Program Files\Steam\steamapps\common\football manager 2010\data\db\1000\edt\
Non-Steam Users
C:\Program Files\Sports Interactive\Football Manager 2010\data\db\1000\edt\
Step 2
Look for the file
transfer_embargo.edt. That file puts a transfer embargo on Chelsea and Bournemouth. If you don't want either of them just delete the file.
If you only want to get rid of Chelsea's transfer embargo then open up the file in notepad and remove the line...
Code:
"TRANSFER_EMBARGO" "Chelsea" "03/09/2009" "03/09/2010"
Done
You will need to
START A NEW GAME for changes to take effect.