It's not like the Dolphins are stacked and will be a super bowl team this year. We've got nothing to lose. Let's take a chance at having a nice year for the rook QB and Philbin's first year heading into this new era. We all can't stand the Jets, but I admired them for pulling out all the stops taking risks last week against Houston.
And imo, this is not a big risk anyway. Again, Deion Sanders was the best corner in football. And he played a far more dangerous position, as a punt returner all the time against 11 men ready to take his head off every week. Even played some snaps at WR, and even playing another professional sport, baseball, on the same day as an NFL game. I was there when the Falcons brought in a helicopter to Joe Robbie Stadium to lift Sanders to a baseball playoff game later that night.
Sean Smith has far more size and is not nearly as frail as Sanders was, and he'll be at WR -- corners are small and not terrifying. It's not like we're asking Smith to line up in the backfield to run the ball against defensive lines and LB's. He'll be lined up 3 or 4 plays a game at WR going up against smallish corners. Hell, and he can be used as a decoy for 3 or 4 WR sets, it's probable that other teams will stick a #1 or #2 cornerback on him considering Smith's size, as the Texans stuck their #1 corner on Cromartie last monday night... then attack other areas.