I don't think you have to be in a profession to give your assessment of how folks in the field do their jobs. If that were a requirement:
- most of us wouldn't be able to vote for our favorite singer in American Idol
- there would be no Nobel Prizes
- we wouldn't be able to vote in elections
- civilian leaders wouldn't be able to command military professionals (this is a foundation of our democracy)
- no America's Choice awards, either.
- parent-teacher conferences would be pretty boring
- and so on
Of
course we can offer critiques of others. Particularly if we are the customers they are serving. We can ask our waiter not to spill water on us, and we can ask our announcer not to butcher the players' names. Naturally.
Having said all that, I think Bob Kessling is a fine person who does a pretty good job.