Every team that picked 23rd in the drafts of years past did their level best to make the right choice.
The list is a representative sample. It's not a science experiment in a lab that can be repeated. But it's history. And history can teach lessons.
We can look back and see an entire spectrum of results, but IMO a majority of those players were not difference-makers for their teams.
Some were.
There are those who tend to imagine that a 1st round pick, even at #23, will be very likely, perhaps almost certain, to yield an excellent difference maker for the Rams for years to come. So they think it is a very valuable chip to trade away for Brandin Cooks.
The perspective offered is to look at the history and realize that the odds of that are not all that great. It is more than possible that the 23rd player chosen this year will be nothing special as an NFL player.
Or they could be excellent.
But at least the list gives people a chance to look at past results and decide for themselves just how valuable a prize that Rams traded away, or not.
I certainly found it informative.
YMMV
Ramily!