I'm surprised you have Jones penciled in as the starter next year.
I've been a Jones supporter and was very much of the mindset of giving him another year, but the injuries is a near final straw for me.
If the new GM really likes a QB with one of those top picks, I think they draft a QB and Jones will then be a placeholder/backup.
Though in general the idea of having a QB on the roster who will challenge the young QB? Outside of motivation, I'm not a proponent. At this point do I want a mediocre journeyman QB winning some games to close out the year? No, I'd rather lose and have the higher picks.