I think for the most part Treliving has made the right moves, but with the wrong pieces. He assembled a core from guys picked at the top of the first round, which is what you are supposed to do. He was patient in his build, but aggressive when a clear team need was identified and when he had a chance to address it. As a GM, I think he is a guy you can trust to make the right type of move at the right time. I definitely agree with the notion that we could do a lot worse if we change the GM.
Treliving's biggest knock is obviously results and decisions on coaches, but both of those things are heavily influenced by factors outside of his control. You could say that the disparity between how Draisaitl and Bennett turned out is likely the biggest reason for the disparity between Edmonton and Calgary at this point in time. At the end of the day, rebuilds are an investment in the top picks that you get at the bottom of the valley. If you don't get return on those investments, your job as GM becomes a whole lot more difficult. And I have a hard time pointing at Treliving as being at fault for that.