"As manager, Alex will want more and more," Gill told the Mirror.
"And at some point you have to say no. Alex will respect that and he doesn't sulk. I've learned that from him. Having said that, it's stupid to say there's no correlation between investment and success. There's a strong coefficient. But it isn't that simple. Chelsea last year won nothing. This year they are doing well."
"But without money in the sport today, as sure as eggs is eggs, you're not going to be up there challenging."