Let's face it, the Canucks D have almost always had issues. The older fans are still talking about Reinhart. The best group was during the 2011 Cup run and that was kind of fluked into. Who knew Bieksa could be a shutdown Dman alongside Hamhuis? Had Salo not injured himself in the summer Bieksa was the odd man out. Credit to Gillis for Ehrhoff, Hamhuis, and Tanev, but the best Dmen he drafted were Hutton and Connauton. It's hard to rebuild your D through free agency and trades like the Ehrhoff deal again and again. In terms of long term pieces the best recent pieces were Tanev, Edler, Jovo, and Ohlund.
A big reason some of us want Tryamkin back is because changes need to be made on the blueline. Last year, when we had Edler, Tanev, Hutton, and Stecher in the lineup and playing top 4 minutes the D was bad. Sometimes you do need to make change for the sake of change.