We all understand getting defensive when "one of your own" is being grilled, but being a little objective points to some concerns.
First, while it may be true that White's issues pale in comparison to MoC's, there is a commonality between the two and their issues, namely poor judgement and deflecting blame for their actions. Granted at this time LW's actions aren't as bad as MoC's were, but it is not a desirable trait to have. Nor is the poor judgement a desirable trait.
As for self-destructive nature, well MoC is in a class all his own on that one, but one doesn't have to be as self-destructive as MoC to be out of the league quickly. If true, already failing a drug test is not a good way to enter the league. I consider this self-destructive behavior and again exhibiting poor judgement.
Now I wish nothing but the best for LW and I truly believe that he won't go down the MoC path and Tenn. may have quite possibly gotten one helluva a steal in this draft getting him in the second round. It sounds like he may have to take his own physical conditioning a little more seriously now, he doesn't have to be a gym rat, but the life expectancy in the NFL for running backs is pretty short....and that takes into account players who do take conditioning seriously.