Last spring, Colby Lewis was 0-2 with an ERA of 9.75 in four games. He gave up thirteen earned runs in twenty-one innings and surrendered four home runs. During the regular season he won a team high seventeen games.
This spring, Colby Lewis has given up eleven earned runs in 9.2 innings for an ERA of 10.24, and he’s coughed up three home runs.
Conclusion: You cannot draw any conclusions.