There's a lot to like about him.
Being a defensive coach puts him behind the 8 ball though. And of course they'd be people saying "Why didn't you just hire Wilks?"
He was a consultant with the Saints for a few years before taking an official job with them. He's done okay with their drafts.
He'd be subservient to Payton in this role of course since Payton wants final say.
Valid, But it's also true that Olsen is extremely football smart. He knows what he's talking about.
For the record, Olsen has been supportive of Ken Dorsey as well.