"If we need a world class player, then we'll get him and provide the best deal," he told BBC Radio Five Live. "What we must do which we've not always done is get the best value deal."
"[The money] goes into the central pot," he said. "We manage it as a business and then we decide where we're going to spend at the start of each season when we do our budget.
"The budget for transfers for this year was already allocated and that remains unchanged - it's a big amount anyway - and Sir Alex is confident he can get the players he needs this summer.
"If we need a world class player for a certain position, then the Glazers have made it very clear that that's what we will do."