My take on this deal. JAX probably realized early on they were not in play with Cousins. Everybody else in FA that was feasible (I.E. they weren't getting Brees) ...50/50 on whether they're improving or not and the cost would've been higher.
I wouldn't look at this any longer term than this season. More than anything...JAX is buying another season (fairly cheaply actually) with Bortles before making a long term decision.
I tend to agree if I were a Jags fan. I'd probably want to see a new face behind him from the draft.
I agree with your post entirely. Think the Jags will draft a QB, but moving up much to grab the obvious candidates may be deemed to costly. I don' know much about the QBs in this draft, but from what I've read nobody is a slam dunk to be a franchise QB . Opinions are all over about whose the best and who should be included as potential franchise QB, makes no sense to over pay to move way up, now if one falls lower then expected then maybe you try to move up for him.