As Aikman alluded to...Jerry's comments could well be telling, as he believes they can rehabilitate anyone.
Pro's & con's for both IMO.
RG3 pro's: Great rookie season culminating with OROY. Smart...graduating from Baylor in 3 years with a 3.67 GPA and starting work on a master's. Great athlete with some arm talent. Didn't create any drama in 2015 given being in a tough situation...rather keeping pretty much silent in the media, etc.
RG3 con's: Despite his intelligence, he's had trouble deciphering defenses. There are those concerned about the aging Romo's health that want RG3, who has had injury issues going back to college...the most serious being tearing his ACL as a Sophomore...and then suffering tears to his ACL, meniscus, & LCL, in 2013. It's clear he won't last running too often in the NFL...but can he ever effectively & consistently operate from the pocket without an offense designed around that option? Turnover issues in 2013 and 2014...with 18 Int's and 20 fumbles (including 8 lost), in 20 starts over that span.
Manziel pro's: has the ability to perform the spectacular...though most of that still resides in College Station & may never consistently be seen in the NFL. Despite his smaller stature...has larger hands & a pretty good arm. Has shown accuracy on the move to both sides of the field. Displayed at least some glimpses of progress on the field.
Manziel con's: Despite a few glimpses of some maturation on the field...it was again the exact opposite off of it. Attitude, alcohol & immaturity issues, are huge concerns...even more so given the gravity of the position he plays. Hasn't had the opportunity to consistently be on the field to develop, because of his own behavior & choices. Much like RG3...can he ever effectively operate largely from the pocket?
Both would need to reign in the running or they'll get killed. They'd have to approach running like the smaller statured Russell Wilson does...but can either ever operate like he does in the pocket...reading defenses effectively, etc.?
Between RG3 & Manziel...RG3 has proven more in the NFL up to this point, while Manziel has brought his off-field issues with him from college. Yet another video of Manziel partying has apparently surfaced...this time at a bar in Dallas:
http://www.cbssports.com/nfl/eye-on...-manziel-partying-emerges-this-time-in-dallas