As many have suggested timing, accuracy and decision making are a much more tell-tale sign of success for a QB opposed to arm strength alone. I believe Jake showed a lot of poise and quality decision making overall considering it was his first real game action without a red jersey or vs an opposing team since I believe something like
December of 2010 (off-topic but many on here are skeptical about Uthoff's immediate impact in BBall for very similar reasons). Sure there were a couple of poor throws and not every ball was a tight spiral but he showed me enough that I am cautiously optimistic. I think the double-clutching and little crow hops will soon become a thing of the past as he settles in and the "norm" will be a guy who can not only buy a little time in the pocket but can also be effective throwing on the run which can become a huge asset if we ever see the resurgence of our tight ends on those 3rd and shorts or simply tuck and run for a first down. Jake also had the presence of mind to throw one away last week rather than give up lost yardage on a sack. Finally, I've seen throws with decent zip on them followed almost immediately with more of a touch/finesse pass so he has the ability but it may be a bumpy ride these first couple of weeks.
Just for fun even though I know this isn't Apples to Apples...
HS Bio vs
Big Ten Top 25 (1956-2012)
passing yards (2,827) vs (3985) - Drew Brees (1st), (3738) - Hartlieb (5th), (3136) Billy Dicken (25th-Purdue)
touchdown passes (36) vs (39) - Drew Brees (1st), (26) - Banks/Long (9th), (25) - Stanzi/Vandenberg (11th)
completion percentage (65%) vs (73.51%) - Dan Persa (1st), (67.08%) - Long (7th), (65.49%) - McCann (14th), (65.37%) - Rogers (15th), (64.97%) - Hartlieb (22nd)
efficiency rating (210%) vs (191.78%) - Russell Wilson (1st), (157.63%) - Stanzi (13th), (157.12%) - Banks (14th), (156.71%) - Hartlieb (15th), (156.45%) - Long (16th)