The Thunder would prefer to lock up Jackson this offseason, but that's not likely. It's possible that Jackson plays for a contract in each of the next two seasons in Oklahoma City, which generally motivates a guy rather well, although if Jackson already wasn't given his full focus and energy, Presti misread that DNA.
Jackson averaged 13.1 points per game last season for the Thunder along with 3.9 rebounds and 4.1 assists. He was vital in filling in for Russell Westbrook when he was injured and his ability to stretch the floor (34 percent from 3-point land last season) eventually convinced coach Scott Brooks to put him next to Westbrook at two-guard.
But that move also was more out of a lack of better options than anything. The Thunder need a legitimate two-guard to spread the floor and help out defensively; free-agent signee Anthony Morrow is unlikely to be that guy as he's traditionally been a bench shooter.
Jackson honestly might have more value on the trade market, which might provide the Thunder an opportunity to bring in some quality depth along with a viable two-guard. Jackson's proven he can be a legitimate starting point guard, and if a team believes in his long-term development, they might be willing to give up short-term assets for him.
The Thunder have been exceptionally patient with their approach to team-building, but looking to extend Jackson long-term, at a position they already have a top-ten player at, might be too far. The Thunder have some time, though. Jackson's set to be a restricted free agent next summer, at which point if the Thunder need to, they can match any offer for him, or hope that threat drowns the offers for him, as it has with Eric Bledsoe and the Suns.