Jimmy Butler rejected the Chicago Bulls' final offer on a contract extension and will become a restricted free agent this offseason.

Butler could have an edge in negotiations due to the dearth of quality shooting guards.

‘‘It’s a great question, and you go through different stretches,’’ Tom Thibodeau said when he was asked Tuesday about the talent at the position. ‘‘There was a stretch where everyone was saying, ‘Where are the point guards?’ And now there are a ton of point guards. Now you have more skilled bigs, so you don’t have as many true centers. I think it goes in cycles.

‘‘There are a lot of good basketball players. You might have a small who is good at posting up. You might have a big who can really shoot the three. When you add pieces like that, it makes your offense a lot different, particularly with the passing.’’