Something I know multiple folks here including me, and IIRC some in the sports media have talked about is how today a lot of the top 2 top 4 teams have at least 2 top/elite receivers and/or pass catchers and many times have a 3rd guy who is also very good or at least above average/mismatch advantage taker.
I’ll base this on who made the championship games. I am also leaving out a ton of good role players or solid depth guys. I'll stop it at 2013 but N.B. Seattle was a run heavy team when they won their SB and lost vs the Pats.
Top 4 teams:
2020
Bucs: 3 elite: Godwin, AB, Evans. 1 VG: Gronk 4 total
Chiefs: 2 elite: Hill, Kelce. 1 VG: Watkins 3 total
Bills: 1 elite: Diggs 2 VG: Beasley, Brown 3 total
Packers: 1 elite: Adams 1 VG: Tonyan 2 total
2019:
Chiefs: 2 elite: Hill, Kelce. 1 VG: Watkins 3 total
SF: 2 elite: Deebo, Kittle. 1 VG: Sanders 3 total
TEN: 1 elite: Brown. 1 VG: Davis 2 total
MIN: 2 elite: Theilen, Diggs 1 VG: Cook 3 total
2018:
NE: 1-2 elite: Gronk, Edelman 1-2 VG: Edelman, White (Struggled how to categorize Edelman) 3 total
LAR: 3 elite: Woods, Kupp, Cooks. 1 VG: Gurley 4 total
KC: 2 elite: Hill, Kelce. 2 VG: Watkins, Hunt. 4 total
NO: 2 elite: Thomas, Kamara 2 total
2017:
PHL: 1 elite: Ertz 2 VG: Agholor, Jeffery 3 total
NE: 2 elite: Gronk, Cooks. 2 VG: Dola, White 4 total
MIN: 2 elite: Theilen, Diggs 1 VG: Cook 3 total
JAX: 0 Elite. 0-3 VG: Allen Hurns, Marquis Lee, Keelan Cole. (I struggled with 2017 JAX) 0-3 total
2016:
NEP: 1-2 elite: Marty B, Edelman (Gronk injured). 1-2 VG: Edelman, White. (And on top of that you had Dola, Hogan, and Mitchell!) 3 total
ATL: 1 elite: Julio 1 VG: Sanu 2 total
PIT: 2 elite: AB, Brown 2 total
GB: 2 elite: Nelson, Adams 1 VG: Cobb 3 total
2015:
DEN: 2 elite: D. Thomas, E. Sanders. 1 VG: Daniels 3 total
CAR: 1 elite: Olsen. 0-1 VG: Ginn Jr. (debatable here but he was a decent deep threat that year) 2 total
ARI: 1-2 elite: Fitz, John Brown 1-2 VG: John Brown, Floyd 3 total
NEP: 1-2 elite: Gronk, Edelman. 2-3 VG: Edelman, White, Dola 4 total
2014:
NEP: 1-2 elite: Gronk, Edelman. 2-4 VG: Edelman, LaFell, Dola, Vereen. 5 total
SEA: 0-1 elite: Baldwin. 1-2 VG: Baldwin, Kearse. 2 total
GB: 2 elite: Nelson, Cobb 1 VG: Adams 3 total
IND: 2 elite: Hilton, Fleener 1 VG: Wayne 3 total
2013:
SEA: 0-2 elite: Tate, Baldwin 0-2 VG: Tate, Baldwin 2 total
DEN: 2-3 elite: D. Thomas, Decker, J. Thomas 2-3 VG: J. Thomas, Welker, Moreno 5 total
NEP: 0-1 elite: Edelman 1-2 VG: Edelman, Vereen 2 total
SF: 2 elite: Boldin, V. Davis 2 total
32 teams listed. Of those only 1 definitely had 0 elite guys, 2017 JAX. JAX was a bit of a Cinderella team and a fluke. They never got back. The 2013-2014 Seahawks were primarily known for the LoB but had peak Tate and Baldwin - and their numbers would have been higher had the Seahawks thrown the ball more.
The Patriots have 5 guys who could possibly be in that very good tier: Henry, Smith, Agholor, Bourne, Meyers. None of those guys will be elite. So high end talent wise the Patriots are lacking a guy the opposing defense is going to fear. If it were me I would look at the X position as the biggest area of opportunity. Your best receiver on the team is Meyers. He's an inside only guy so in 12 you need an X. Agholor is the X now and while he has some good traits like his vertical ability he isn't a dynamic guy and he certainly isn't elite. They could really use a dynamic elite WR who can play X but also move around. A guy like AJ Brown for example. I think they need a high end receiving talent of some sort anyway. The problem is they don't have a lot of cap room in 2021 or 2022 to do it unless they traded draft capital for a guy under his rookie contract. But they can't really do that with the number of needs they have for next year and their cap room. I think the offense is going to have enough guys to be competitive for the playoffs or in the hunt for them but I do not think this is a championship caliber offense without additions that probably won't come until 2023. I could be wrong but that's my take on it.