First, I'm not a huge Garrett fan....my point about the playoffs is that they have been fairly successful the last 5 years. Nothing more or less. As for "he should have more", so should be fired seems odd to me. People here (I think you among them) talk about consistency in coaching being super important to long term success. Also, maybe Garrett was BAD in his first few years, but has gotten better as time has gone on (I don't think that, but results indicate that might be possible).
My point all along was that if you judge a head coach by outcomes, Dallas has been better than MN since Zimmer got here, assuming outcomes is playoff appearances.