I think Smith will be a better version of Butcher and make him redundant, but at the same time I can't see trading, for reasons already posted but more so(whether people put stock into or not,) the fact that he could have went anywhere after college and they convinced him to come here. I know it's not hard to come up with examples of recently signed FAs being traded, but they convinced him we needed a D man like him, and he has not only NOT sucked, but has actually been better than advertised.
So to trade him off just because we don't need him anymore even though he is playing the exact way we want, is not a good look for FAs in the future.