Are you talking about Dice-K?
1st start: 6 ER, 4.2 IP, 3BB, 7 hits
2nd start: 5 ER, 5.1 IP, 3BB, 5 hits
3rd start: 1 ER, 7 IP, 0BB, 3 hits
4th start: 7 ER, 4.2 IP, 3BB, 9 hits
5th start: 0 ER, 8 IP, 4BB, 1 hit
6th start: 3 ER, 4.2 IP, 8BB, 2 hits
3 awful starts, 2 dominate starts, 1 sub-par start. The guy is a career 1.4 WHIP, 1.93 K/BB, 4.3 BB/9. Lets be real here, his first year was average, his second was great for wins/era, but he wasn't exactly dominant with a 1.32 WHIP, 5 BB/9. His last season+ has been awful.
I see a pitcher with 1 "good" year out of 3+ season who gives up WAY to many walks to be successful and pitch deep into games. He's looking more and more like Hideo Nomo, except worse. Nomo actually dominated his first 2 seasons and his WHIP was 1.0 and 1.1 and over 230 strikeouts. However, his whip got worse every season and he quickly became average to poor. Dice-K already has the high WHIP, I see his fall being worse than Nomo.