I ran across an interesting piece and a complete breakdown on Chien-Ming Wang via The Hardball Times upon finishing runner-up in the AL Cy Young Award race and it compares his low-K ratio to other pitchers like him during the last couple of decades (ie: Mike Morgan, Bill Gullickson, Kirk Rueter, among others).
The comparisons don't exactly sound too promising over the long haul for Wang as a front-line starter (especially in the offensive-oriented AL East) and I certainly hope he can mix in at least one more pitch to go along with his hard-sinker because anyone who can consistently throw 95 MPH should be striking out more hitters than he does.
The more often the ball is hit into play, the more likely the ball will find holes.
Read their entire breakdown and analysis here.