Because that is what the Minnesota Vikings effectively did last April.
Stefon Diggs led the NFL in times-targeted, receptions, and receiving yards out in Buffalo during 2020. The only singular metric that Diggs could be considered “average” in this seasonwas his yards per catch. He finished the season with a 12.1 mark for this parameter (64th-best in the NFL), which certainly is not poor. It is virtually the same yards per catch as Vikings tight end Irv Smith Jr. notched this season. With the Vikings in 2019, Diggs tabulated a 17.9 yards-per-reception, good enough for fourth-best leaguewide.
The Bills utilized Diggs differently than the Vikings did one year ago.