I can't see why you don't play Lindsey more. If Tre breaks out, great. Someone said, and I agree, that Demps was a great 6th man. So maybe CCC's respect and loyalty keeps Demps starting for a long awhile. Still, cannot see why he is not the first man off the floor - and bring in Lindsey. Then use Demps to spell Mac, as Ash is really more of a 2 than a 1.
(BTW - the only B!G player exceeding Demps MPG is None. No superstar or player from a well coached Power 5 school averages Demps' minutes. And it is not like Demps is a world beater or playing with no depth (unlike Mac). Only B!G players exceeding Mac's minutes - WI Koenig and Hayes - and we saw where that team is going...)
Lindsey still has a nice FG% and wonderful 3PG%, he is better at the line, averages one less rebound than Demps despite playing half the time and his PPG is proportional to Demps based on minutes. The only down side is a higher turnover ratio - but if you counted stupid, low percentage shots as turnovers, then that stat would level out in the least.
Considering that it would be preferable to see Lindsey's development to establish him as the 2 for next year (maybe even giving Ash a year to develop since Law should also see time at the 2) - why not start to lay some heavy minutes on him. Maybe Lindsey stinks up the joint - worse than Demps at present? - ok, start bringing his minutes down and bring more of Demps again...or try Ash. Point being, we won't really know what we have in Lindsey without playing him. Demps is streaky, a senior and slumping.
Best case: Lindsey establishes himself; worst case: next year Ash is competing with a recovering Law for the starting 2 spot next year. Hell, if Lindsey is really not the answer, staff knows to seek another recruit, suggest after the season that Lindsey might consider his options (ala Vassar but with a follow through to secure the schollie upon LIndsey's announcement...) and maybe land a good 5th year C and PG for next year - who knows.
But given that the team is competitive with poor production from the 2, it cannot hurt to see more of Lindsey in B!G play.
Start Demps until some performance dictates otherwise, but get his minutes under 25 and increase Lindsey's time. Domino effect could be to reduce Mac's ridiculous minutes too.