Iguchi was great in '07 and just an afterthought (literally, added after the playoff roster deadline) in '08. Taguchi was the Josh Harrison of his time, he had a track record as a pinch hitter and bench player except the samples were too small to actually be one.
I think this past year's bid for Yamamoto and the new director of international scouting being someone with more experience in Asia bodes well. While I think it's hard to compete with NY/LA/SF/Seattle, Texas and Chicago have both managed to do it.