Your first assumption is that Little Rock has talented on-air personalities. Having been associated with broadcasting for nearly forty years, I've found that most medium-sized markets are about the same when it comes to on-air talent...and in most cases we're talking about morning personalities.
Having been in the Little Rock area for only seven years, I can't discuss the previous group of on-air personalities, but with the deregulation of radio back in 1996, the talent aspect of radio has been degraded along with the quality of radio itself.
If you look at a lot of medium markets you'll find that there are those on-air personalities that have become notable for being at the top of their field in that market strictly due to 'longevity'. Now some people will say that you have to be talented to have longevity on-the-air. Not so. Many mediocre on-air personalities are still around because 'they were in the right place at the right time' and, in addition, many started when radio was what many of us 'oldtimers' know as radio. There are those, I won't mention names, in the Little Rock market that are not necessarily good and, probably, wouldn't have made it in larger markets, but they've been up there year after year because they've been around the longest. There are always those exceptions that will leave a market and be successful, but you also have those who know that its better to be a 'big fish in a small pond' than a 'small fish in a big pond' as a medium market on-air personality told me many years ago.
If you want to compare local Little Rock talent to local Little Rock talent, then you may be on-the-mark with your picks.
And, I must admit, most on-air personalities are doing the best they can with what they have to work with. Not all station owners provide the right environment for today's air personalities and big corporate owners tend to be less appreciative of their air talent, their listeners and advertisers.
A little analogy here: A fly may land on a pile of crap. He's at the top of the pile...but it's still a pile of crap.