True.
Ravens immediately before Todd Monken:
19th in points
16th in yards
Ravens the first year under Todd Monken:
4th in points
6th in yards
This past year:
3rd in points
1st in yards
He's also from Wheaton and grew up a Bears fan.
Context needs to be provided here. In the season before Monken got there, Jackson missed 6 games due to injury, JK Dobbins and Edwards both missed half the season due to injury, and their best receiver was DeMarcus Robinson (aside from Mark Andrews).
With Jackson, the Ravens averaged 25.1 PPG, and without him, 15.3 PPG.
By the time Monken joined, Jackson has been healthy, their RBs have been mostly healthy, they drafted Zay Flowers which has helped open up the offense, and then brining in Henry obviously helped a ton.