Whitfield is a great ball user though, which increases the chances that Kelly gets hit when he's in space, they've got a lot of hackers and butchers in the team who just bomb long to their non-existent KP targets because they're crappy ball users (Ward, Hopper, Taranto and Daniels) when Kelly is often running to space on a wing or half forward.
Kelly's upside, especially if he moves clubs to somewhere that would use him and even more so if he goes to a club with a good medical staff, as a forward would be a lock if he's priced in the 90s next year. He'd be Dunkley this year.
Hardest thing with Kelly is how well he looks physically and knowing he's a role change from being a 120 scorer. As much as he's salvaged the last couple of weeks his one constant strength has always been endurance so you do expect him to finish games strongly, just be nice if he could score in the earlier parts so he could be putting a cherry on instead of saving.
Only reason to trade Kelly right now though is if you're fixing a massive hole elsewhere, I can understand him to fix Gawn/Grundy missing in your rucks, especially if Flynn is out, otherwise Kelly is a very sideways move right now. Reality is that in his current role he's looking to be a 90s scorer which is very consistent with other talented HF types (Heeney, Butters, Zorko, Martin, etc), he's basically dropped to the point where he's priced fairly on those grounds and given his ability to score 120+ if he does go into the midfield I'm not sure you gain a lot.
To me makes a lot more sense to do your regular upgrades where you get a Jordon/Berry off the field to a premium and hope Kelly gets sorted out in the next 5 weeks. Sucks he has the first bye to not be able to leapfrog through there. Realistically Kelly as an upgrade is a very minimal return right now compared to alternatives and as long as he's fit he's always a chance of getting his role. Would only take a Ward/Hopper injury or two and he's basically got to be in the guts.
Also a case that when Coniglio, Whitfield, Hogan, De Boer, Lloyd and Perryman types do return that they don't see a need for him up forward anymore. It's very much worth noting that in rounds 1 and 2 and the first half of round 3 his role was actually very decent, not great, but decent, it wasn't until the Melbourne game where they lost both of Coniglio and De Boer (both play HF considerable amounts this year) that Kelly was sent forward. Now those guys are all out for extended periods but around the byes you'd expect most would be back and Kelly could be unleashed.
This is my absolute best effort at glass half full