Sorry if this has been posted before, but I thought I'd give somewhat of my own take. It's pretty clear that Alex Smith is going to be the starter for at least one more season, but to me, the most suspenseful part of how the 49ers will draft will come down to QB's. Harbaugh's proven to be one of the best QB coaches across all levels, and even with Kaepernick, I wonder if he'll see someone that he truly wants to draft and try and develop.
Ryan Tannehill, Texas A&M
"Has limited game experience at the position and his rawness shines through as a decision maker at times... No question he is physically tough and has enough mental toughness to succeed at the position. Best football appears in front of him and he could better with more experience... Possesses above-average athleticism and quick feet within the pocket. Can break contain and buy time to extend plays ."
Definitely has some big upside, and potentially could be a 1st round pick with the options available after RG3. Has top-end speed for the position and seems like he'd be a solid fit. Ultimately, I can't imagine any scenario where the 49ers would use their 1st rounder on a QB, so I don't think Tannehill will be holding a 49ers jersey come April.
Nick Foles, Arizona
"Decision making becomes inconsistent when having to get to 2nd or 3rd option, though. Displays a good feel for game situations, however, poise is just average and shows some panic when protection breaks down. Lacks the necessary anticipation at this point and needs to see WR come open which can cause him to be late with throws... Flashes ability to change release point if necessary. Prototypical arm strength and can make all the necessary NFL throw as well as drive the ball down the field vertically."
Prototypical size with little to no speed, but has a ton of upside in his arm and with his accuracy. Pocket presence and footwork needs a ton of work. Not sure where Foles is projected to go, but I personally wouldn't use anything more than a 3rd rounder on him, even in a limited class of QB's.
Brock Osweiler, Arizona St.
"Osweiler is big-armed pocket passer who has surprising mobility. The former basketball player has good athletic ability for being so tall. Looking at him, one would think he would be a statue in the pocket, but that is definitely not the case... Osweiler has real arm strength and the gun to be a starting quarterback in the NFL. He is very raw and needs some work."
Probably the rawest in this group, Osweiler will probably draw interest from a ton of teams, even if in the later rounds. I get a sense that he'll rise on boards as draft day approaches because of that size and upside. For where the 49ers are at, using a 3rd round pick could be somewhat of a stretch, especially with the quality of talent the 49ers have proven they can get in these middle rounds.
Kirk Cousins, Michigan St.
"Pre-snap command of offense is above average. Identified front and pointed out Mike before the snap. Showed ability to audible and get offense in right play. Pointed out assignments to backs in pass protection. Flashed ability to check down when first option wasn't there. Anticipation is slightly below average and timing is just average... Got the ball out of hands quickly once made decision. Put adequate zip on passes thrown outside hashes. Can alter release point in the face of pressure."
Not sure if Cousins is the most NFL-ready out of these four, but it's a safe bet to say so. Undersized with the ability to escape the pocket but seemed to throw off his back foot a lot and miss too many open receivers. His potential doesn't seem real high, but his mental ability at the position could be something that appeals to Harbaugh. If a 4th or 5th round pick, I'd probably be OK with it. Will likely go higher for someone who needs a starter, similar to Andy Dalton (less upside then guys above him, more NFL-ready)
Apologies if I'm off on the potential target rounds for these QB's.. just judging off what I've heard and seen on various draft websites. Scouting report excerpts from ESPN and Walter Football.