If you want reasons to think Shogo won't work out they definitely exist, but I would hesitate to say his game is predicated on speed. His plate discipline and hit tool are the main attractions. Speed makes both of those things more useful, but they also remain useful even with waning speed. When I think about his profile, on one end you can see a lot of Zobrist as a hitter. On the other hand, you can see Fukudome with a touch less pop. Both those guys stole their share of bases in their prime, but it wasn't the driver of their production. That's true, but I was also largely thinking about his defense, too. I dunno; this just seems like there are a zillion warning flags with this deal.