May welcomed the interim appointment of Giggs and can envisage a partnership between the United legend and current favourite for the position, Holland boss Van Gaal.
"It's a wise appointment - only the tea lady has been here longer than Giggsy," he told MUTV.
"I'm sure he'll give that dressing-room something which is needed - whether that's a kick up the backside or whatever.
"I think he could be the perfect understudy to Van Gaal to say, "Listen, this is how the club is run" and I think that's the way forward for United.
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