Wouldn't surprise me one bit.

No doubt he controls who sits in for him.

he would hate to get the feedback of someone doing a better job

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"Woof Woof"

It wouldn't take much to have someone do a better job.

I think Drinky posted somewhere that the hosts choose who sit in for them, not just Mike, but all of them get that choice.

Even if Mike North has control over who hosts the show in his absense, I don't think that's a big deal. It's his show, and if doesn't like the style of a host, that's his call.