I think we need to give CHO and RLC a (preferably injury free) season. CHO has obvious abilities, and is still very young. RLC I was really unsure about until the second half of last season when I thought he was one of our stand-out players.
If we're having clear-out, which we need to do, let's have a look based on the Chelsesfc.com player list:
Pedro - on his way, thank you for his loyal service
CHO - keep him, although will he be ahead of Pilisic, Ziyech, Werner, (Willian) for wide positions?
Giroud - appears to be staying, rightly so as he is playing well and is very consistent
Willian - going to be unpopular here I think, but I would let go
Batshuayi - bye, bye. In reality I think you could have been given more opportunities
Pulisic - keep he is going to be a star
Abraham - keep, let's see the effect Werner's arrival has
Jorghinho - cash in, not sure how he fits into Frankie's system
Kante - keep, but only if we're playing him in a defensive mid role
Barkley - let him go, I like him, but prefer RLC, Mount, Kovacic is those positiond
Kovacic - keep, see above
RLC - keep, see above
MvG - hmmmmm, just given him a year on contract, Roman being nice?
Mount - keep, he's going to be a star
Gilmout - keep and work out his best midfield position
Of those on loan in these positions these may fall into contention (excuse me if any on two year loans) all midfielders:
So I'm letting: Batshuayi (£20m); Barkley (£40m); and Jorghinho (£40m) go = £100m on top of the money already in for Hazard, Morata & Pasalic....
Defensively, I only see Reece James, Rudiger, Tomori and probably Dave as safe. Personally I like Zouma too, but... Outside of those it depends on Frank's plans.
Let Moses go on a free he was a star for a couple of season and has appeared to be a loyal servant.