Can someone explain positional value?

[Time's Yours]

Originally Posted by morphius

LT is more important than LG because LT is normally matched up to protect the blind side of the QB, and is normally blocking 1 on 1 against the opposing teams most athletic DE that can line up wide and is also responsible for forcing the DE to the inside when you want to run to the outside. A LG normally just has to man up, and may have help from the C.

Makes sense. So the QB is most important for obvious reasons.

That makes the left side of the line more important than the right.

Where do safeties and corners come in compared to LB and DL? Or is it just enough of a tossup that you go with need or BPA?