Gana > McCarthy
All day everyday.
Gana is potentially player of the season, potentially one of the best deals in terms of signings for all clubs this year (thanks walsh/whoever), when has that EVER been said about McCarthy? Not saying he is terrible but... seriously, when has that ever been said about McCarthy?
Gana's impressive Makelele role will allow Davies freedom and piece of mind to get forward, and will be further solidified by Morgan being a rolls-royce of an anchor (assuming we play 4-3-3, which seems preferred under koeman)