the number one is a role not a person.
Depends on the team. Every team has a #1 receiver by necessity, but there's a big difference between #1 Pierre Garcon and #1 Megatron.
Wes Welker a number one receiver?
Absolutely, though that has changed somewhat as the Pats have shifted to a 2-TE focus. But he's certainly not a #3, as most slots are.
When you say double, you mean role the safety in his direction?
Depends on the defensive scheme, down and distance, etc. But in general "doubled" means covered by two defenders. Sometimes it's two corners, sometimes a corner and a safety, sometimes a safety and a LB...all depends on the situation.
The number one receiver is the guy who gets the most balls thrown his way.
Sure, on a general level. But again - Danny Amendola ain't Dwayne Bowe no matter how many passes he gets.
You think if Hartline is doubled there not gonna worry about Bess in single coverage? I guess that would depend on route running, qb accuracy, play calling.
All depends on the situation.
So what makes said alpha, alpha? that hes 6'4 and runs a 4.4?
Size has nothing to do with it. Greg Jennings and Megatron are both alphas...but have completely different body types. A true #1 is a combination of traits - ability to get open, play physically, score TDs, dominate games, etc. Intangibles matter almost as much as tangibles.
Everybody wants a playmaker that can run past the defense, make the man miss and catch the elevator throw. But if Hartline and Bess arent NUMBER ONES, than howd they succeed, without a number one to take the pressure off?
Success? The team is 1-3 and struggling to score TDs, particularly in the passing game. Hartline and Bess have played very well, but with a legit #1 we'd be scoring TDs in bunches IMO. It would change the entire offense.
How much does Megatron not being in the game change the outcome? Some, definetly, but enormous, gotta have one to succeed? Nah, Burleson would catch his balls(LOL) and do a few things that Calvin wouldnt.
Of course it affects the outcome. Talent trumps all.
Im not deminishing the need for great players, just think its a bit overblown through shall we say polarization. Start putting Hartline on Cadillac commercials and suddenly hes alpha one bad ass