the level of professionalism that each of them display couldn't be further apart.

Markham has repeatedly show a level of clownism in the many years he has been in the business, to the point where his judgement is so clouded and blinded that you can't rely on much that he brings from his sources because he has very little professional skepticism.

If Markham showed half the level of professionalism and maturity that Jeff Hansen does, he might not be viewed as a complete at total buffoon of a media person, but he has been playing that role for many years.