It is hard to put an numeric value on a position . The 53 man roster , The FO and The Coaching Staff all have to function as a well oiled machine to win .
How can it be quantifiable when the entire unit as a whole is symbiotic.
The QB can not win if the receiver / TE/ does not catch the ball.
The Receiver /TE can win if the Qb does not throw them the ball.
The RB can gain yardage if he is not handed the ball.
The Offense can not function if the O-line can not block
If the Defense can not get off the field . The Offense is not on the field.
If the Owner does not hire the right personnel The team is limited.
If the FO does not field the proper players . The team is at a disadvantage
If the Coaching staff does not have a successful game plan. The Team is unprepared.
Every member From the Owner to the players is dependent on everyone doing their job properly.
If there is a chink in the armor . It will be exposed on the field. It will not matter what numeric value you place on any position.