I know it sounds strange when talking about a guy with multiple bulletwound scars, but Keith Davis is a very good guy to have in the lockerroom. He is a natural extravert that people tend to gravitate towards, and he puts in a lot of time with younger players. He's a joker who loves to crack on his teammates and keep things loose, but he's also very passionate about the game. He's never been handed anything in the NFL, and he's had to fight, claw and scrape for everything he's got. Lockerrooms are just like any other working place, and often times you get little cliques going on ... black vs. white, offense vs. defense, big city guys vs. small town guys .... Davis was one of those guys with the Cowboys that transcended all of that. Everyone liked him. Everyone loved to be around him and listen to him joke around and laugh. Parcells typically doesn't put up with the off the field nonsense, so the fact that he kept welcoming Davis back after his shootings shows you the kind of personal affinity he had for him.
I'll never forget the Cowboys won a very emotional game in Carolina after the team suffered a devastating loss in NY the previous week. When it looked like the game was in hand, everyone on the sidelines got real emotional because all the Cowboy fans and Dallas media had been dog piling on them and kicking them while they were down the entire week. Everyone was saying their season was over. Nobody was giving them a chance to win that game. This was Romo's first ever career start after Parcells had benched Bledsoe. Suddenly it felt like a new season. The coaches and players were walking up to one another hugging and smiling. Parcells walked up to Keith Davis on the sidelines, put his arm around him and kissed him on the cheek like an old school Italian father would kiss his son on the cheek. I think Parcells always admired Davis' passion for the game and the way he turned himself into an NFL player against all odds just based on a great attitude + blood and guts spilled. Parcells would say it's being around young men like that are the reason he could never stay away from coaching.
He's not a free safety. He's more of an enforcer type of safety. It just so happens Dallas has one of those in Roy Williams. The Cowboys tried to force him into the starting free safety position, with not so good results. If he can play strong safety for the Dolphins, he should be adquate as a starter. Nothing special, won't go to any Pro Bowls, but he can plug a hole while the Dolphins focus on more critical positions like QB, LT, CB, WR, etc. in the draft.