It's about intermediate throws into tight windows. He simply has no confidence to do it.
Intermediate throws (10-19 yards), like Prescott's other throws, were much more successful in games when all 5 starting OL played at least 3 quarters.
Aimed attempts only -- 10-19 yd
with starting OL
(27% of all attempts in these games)
45 of 89 683 yd 10 td 1 int
109.0
without
(19% of all attempts in these games)
15 of 26 109 yd 0 td 4 int
28.0
The "without" is a four-game sample (Atlanta, Phi, LAC, Seattle)
. It doesn't include the season finale in which most of the Eagles' defensive starters did not play.