A very good squad can carry an ordinary hooker - so long as the rest of the spine are weapons. Walsh is probably the best weapon in the game, the equal of prime Turbo and better than even a fit and motivated Latrell.
Which is why the idea you need to have one of the best couple of hookers in the game to win was always ridiculous. A good team can carry average at any position, there is no sinngle position where you have to have a superstar to win, history has shown that. A great team is a great team.