We built a pretty strong team in the 1990s. Do you remember some of the players we had on those teams?
Players don't care about what you do away from the locker room and field. It's about what kind of teammate you are and if you can help the team win. (I don't know the answer to either of those questions with Manziel.)
Michael Irvin had drug issues that eventually led to his arrest for cocaine possession in 1996, to which he pleaded no contest. "Boys Will Be Boys" details the 1990s Cowboys use of the White House for drugs and prostitution.
Charles Haley was a headcase who could make the locker room a miserable place, but even his issues didn't matter because his talent helped the team win.
There are plenty of other things you can read about that team that fly in the face of needing "choir boys" to build a winner. What you need is talent, which is what I'm not sure Manziel possesses.
I'm not sure if you really believ this or are intentionally being obtuse but let me make a few points
1. You cannot take the example of a team that came together 25 years back to justify doing this now, the public and media environments are night and day different
2. That team had a real HC who was no nonsense, not a spineless jelly fish like we now have
3. That HC was also defacto GM so the meddling owner had little power and the players knew who they were answerable to if they stepped out of line
4. Irvin was a VERY talented player who the HC knew very very well. Irvin was THE HARDEST WORKER on the team and was the emotional leader. Manziel is a borderline NFL talent and is not a hard worker, missing practices and rehab.
5. On that team Aikman and Smith were the real leaders and would be considered choir boys by today's standards. This team had no real leadership, none. They have been unable to handle personalities like TO, Hardy, etc
I could go in but this really boring
Manziel is a borderline talent, drunk, party boy, self absorbed, narcissist, lazy player who will be out if this league in the next 2-3 years and will never be a high level consistent NFL player. Any cowboy fan with even half a brain can see that. No one who wants the Cowboys to succeed would ever want to see this idiot on the Cowboys .