For the rest of the season, if you are not going to cut any players, i would put as much minutes as possible into Norton and Blanchfield and see how they go and how far they can progress, may pay dividends down the track.
Norton looks good to me, id put him in as the starting PG,
play Ervin SG where he can concentrate on scoring, he said he played sg last season overseas and put up good numbers, and i personally like the more scoring Pg's as SG's in a role a bit like Jason Terry does in the NBA, obviously Ervin wont be off the bench but he will be the spark plug offensive player, who plays back up PG.
Blanchfield needs to start and also give him some responsibility and see how he goes, if he can play some minutes at PF in a smaller line up, id start him at PF and Crawford at SF, not sure if that would work though, if not bring Crawford off the bench.
The bigs play, none of them are doing much so just play them all 15-20 mins each, as thats all you can do, ideally you would bring in a Neville type or even a Bradshaw, Horvath, BJ Anthony type may be cheaper and surely an upgrade on their bigs, even if not a huge one.
Say no roster changes can be made, and Blanchfield can play a little PF like Weigh does for the 36ers, id have rotations like
C Abney (15)/Allen(15)/Hinder (10)
PF Blanchfield (15)/Holmes (20)/Hinder (5)
SF Crawford (25)/Blanchfield (15)
SG Ervin (30)/M Cedar (10)
PG Norton (30)/C Cedar (10)
(If you dont wanna play Blanchfield at PF, slide him to SF, bring Crawford off the bench and start Holmes, not a big deal either way)
Some would say Norton shouldnt be playing 30 mins, but what have they got to lose, he has been one of there better players imo, is young and will do it tough at times but that should also give him plenty of time to grow and shine, i say let the kid play and see how he goes, and would have a similar attitude with Blanchfield, aslong as they play hard id give them plenty of minutes.
Most of the others i wouldnt keep around next year, maybe Crawford and Holmes but both off the bench.
Next year id be aiming for atleast
C Neville/??? Allen if no one else, but only on min wage, and he has to work hard, id probably get someone else, and play Neville 30 mins a game.
PF Import (to quality, not cheap and old)/Holmes
SG Import (top notch import, at worst keep Ervin, ideally a Rob Rose mould player)/?? Young Aussie, with Crawford playing some back up SG
PG Norton/ ideally an experience back up like a Crosswell type, say get Rhys Carter back from overseas.
That would be a huge improvement, and if Neville is interested they Crocs would be best served to let either Abney, Cedar or Allen go and bring him in right now, and shuffle the line up a little, would make a massive difference imo.