Speaking as a fan of the Tacoma Art Museum and of the art of the west (I loved SAM's "The Beauty and the Bounty" show last year), I consider this wonderful news. Well, so long as this addition doesn't change the character of the rest of the museum--the concern Jen Graves articulates.
There's nothing stopping the two strains from coexisting with and complementing each other just fine, unless the museum loses its vision. TAM already strikes a similar balance, albeit on a much smaller scale, with its permanent collection of Chihuly glass.
I would rather see the focus be on Pacific Northwest Landscape oriented art; mixed with artifacts, natural history and radical ecology concepts. Sounds like this "Western" thing might be too broad and kitschy but still enjoyable I'm sure.
There's nothing stopping the two strains from coexisting with and complementing each other just fine, unless the museum loses its vision. TAM already strikes a similar balance, albeit on a much smaller scale, with its permanent collection of Chihuly glass.