You want to be in the Hall of Fame? There's a very simple formula that gives you a good idea...
There are about 5 players elected in a year, plus or minus. Over a decade, that's 50 players. Divide that by position: QB, RB, WR/TE, OL, DL, LB, DB, and you're left with just over 6. I realize that division of positions is a bit subjective (should DE and DT be in separate categories? OT and OG?), but go with it. That means you can roughly start out with around 6 people per position to provision for the Hall of Fame per decade. To make matters a bit more complicated, the Hall of Fame elects every year, so it's a rolling release. 'Decades' are all in our heads, so it's not about 90s or 00s or 10s -- it's any 10 year continuous period, making comparisons more difficult.
Now, the question is: has Edelman ever been a top 5 WR for a decade?
To me, that's an obvious no, as much as I love the guy.