Jackson is a me-first diva who is not as good as HE thinks he is.
That said, he's been one of, if not THE best deep threats in the NFL his entire career. That kind of deep threat talent opens things up for other players underneath, but doesn't lead to high target numbers. Jackson does run good (not elite) routes and can do more than run deep, but it would be silly to use him that way. He had a career year under Kelly because that system. In the end, that means he might be slightly under-rated as an NFL player (if you ignore his diva attitude), but is probably appropriately valued in fantasy as a top 20ish asset. His usage means a higher than normal variability game to game which can be frustrating. 1000-1100 on 60 catches with 8-10 TDs is what you should expect.
		
		
	 
DJax isn't being valued as a top 20ish asset. Not even close. He's being valued as WR31. He's criminally underrated.
		
 
		
	 
Sure, but TBH there isn't a whole lot of difference between WR20 and WR35 in today's fantasy landscape with WR deeper than ever. You could throw those 15 or so WRs in a hat and draw them out randomly and that would make as good a ranking as any (with a couple of obvious and mostly age-related exceptions). If you believe a guy should be 20 and he's ranked 31...that's nowhere close to being "criminally under-rated".The REASON he'd be closer to 30 than 20 is the higher than normal variance.
I stand by my statement: he might be slightly under-rated as an NFL player, but is appropriately rated in fantasy.
		
 
		
	 
DJax wasn't WR20 last year, he was WR17. That was in a new offense with terrible QB play and battling injuries. The difference between him and WR35 was about 3 points per game. That IS a lot of difference. Here's the list of guys currently going ahead of DJax;
14.	Cooks, Brandin NOS WR
15.	Watkins, Sammy BUF WR
16.	Benjamin, Kelvin CAR WR
17.	Matthews, Jordan PHI WR
18.	Cooper, Amari OAK WR
19.	Sanders, Emmanuel DEN WR
20.	Allen, Keenan SDC WR
21.	Tate, Golden DET WR
22.	White, Kevin CHI WR
23.	Edelman, Julian NEP WR
24.	Landry, Jarvis MIA WR
25.	Bryant, Martavis PIT WR
26.	Robinson, Allen JAC WR
27.	Maclin, Jeremy KCC WR
28.	Agholor, Nelson PHI WR
29.	Marshall, Brandon NYJ WR
30.	Johnson, Andre IND WR
31.	Jackson, DeSean WAS WR
DJax has finished outside of the top 30 once in his career, an 11 game season. He's finished in the top 17 4 times and in the top 10 twice. The list of guys going ahead of him is absurd. Yes, he is criminally underrated.