Re: what QB are you projecting in the top ten next year?
In general teams have assigned their own specific measreables to each position, then evaluate how well they carry/move that weight/size/strength/speed. AT some point durability enters equation along with associated risks, so they must sign off if borderline size prospect is worth that risk for investment. Ideally high risk high reward checks off all the boxes except those you can't measure like passion for the game, heart, football intelligence (sorry wonderlic) intangibles.
Let's just use Manziel for example. Less than ideal size, but he can carry his weight w/elite mobility range. So his draft stock is based on the more difficult & elusive measurements, intangibles. Johnny possess rare leadership ability with swag (will turn off some teams/fans) Innate instincts to process time & space (pocket presence) elite, however how much does height/size play in his ability to make progressions while in the pocket, hence his propensity to escape & throw on the run. A team can succeed with Manziel using a system tailor made to utilize his strengths, not specific but somewhat based off initial prospect measureables.
2012 Draft was Mercilus