As some may remember, I have some personal ties to Zach. First and foremost, I will be the first to admit that he has some hip tightness and that can lead to him struggling to change directions quick enough. However, if somebody tells you that that can never be improved upon, even slightly, please stop listening to then immediately. I remember being horrified early on in Zach Thomas' career when he'd find himself in a mismatch coverage wise. Huge strides can be made with instinct, adapting to the speed of NFL play (mentally) and getting comfortable in your defensive assignments which usually leads to better anticipation.
Zach Vigil is going to make this team, and when he plays, you will see a young kid that from time to time gets taken advantage of in coverage. I expect him to improve with experience. You'll also see a kid that comes right back and makes a negative play in the offenses backfield right after he gave up a pass reception. The kids motor is eerily similar to our other Zach's and I've just seen it too many times to think otherwise. He is absolutely hell bent on the fact that he is making this team and he refuses to think otherwise. As I've already shared in another Zach thread, he's so forward thinking, he's already backed out of a family Elk Hunting trip in late January because the Dolphins will be busy prepping for the Super Bowl.
Yes, I am a Zach homer but I'm not too worried about arguing his merits. I think you all will see what I'm talking about as this progresses.