Well, How much do you think Daley is making? If he is giving The Outfit money then it must be alot because The Outfit is certainly greedy for money, and are hungary 24/7. Daley then won't be making as much profit as he had say a few years..

Also - Daley could also give them up, and keep all the profit for himself rather than paying them. If he is kicking money back to Chicago, He must meet a senior member of The Outfit and it would be easy for him to give them all up, He would know the whole operation of it.