As far as Jones and Fletcher, I believe that they were simply two cases of players at positions that looked pretty deep when decision time came around 6 weeks or so ago. For example, we had Brown, Easley, Branch, Hicks, and Siliga as the 5 main DTs, so it would've been difficult to justify freeing up a roster position for Chris Jones in my opinion. I'm glad to have him in the mix for next year, although I'm also glad to see the improvement in competition and talent just the same.
Fletcher may/may not have been more of the same reasoning with Jones, or he may have simply been viewed as another LB with special teams ability. Either way, losing guys like Hightower, Freeny, and Easley makes these moves look questionable now, but I think they were relatively easy decisions at the time. Just my opinion of course. I could be off.