Mannion has been a good example of how a player grows in his 2nd year. Yes, he doesn't move around alot, but is nimble in a short area and does exactly as you say...he slides/steps up, slides a half step and micro-adjusts in the pocket 2nd best to Goff.
Keenum is the least physically
able QB to me, compared to Goff & now Mannion....however, Keenum is very sharp and knows where to go with the football(as LMU says below) and that's where his success is. imo We CAN win with Keenum and he made very solid throws into tight coverage. Goff is getting faster and faster in learning but would make mistakes if he starts 1st game. I'd like to think they wait to week 3 or 4...before Goff starts. It's not a bad thing cuz you can see the passing talent...it flashes and stands out.
When Goff holds the ball an extra beat...it's confusion...he's still learning...but he's coming along and works the huddle just fine.
Mannion is the biggest surprise. I thought he was 2nd best QB after Goff and I'm glad I was wrong about him. We have 3 good QBs and 2 with real upside!! Once Goff gets the offense under his skin....freakin LOOKOUT...he's a dart thrower!! And he like to throw downfield - which I delight in!! He's gonna be murder with TEs runnin seam patterns against Cover 2 defenses...lordy! Mannion nailed those also to Higbee or Hemingway!
"L'audace, l'audace. Toujours l'audace!"