There is something to a guy who has a winning mentality. It means I will bear down and shut a team down if that's what it takes to win.when your team needs it, REGARDLESS of whether or not they are on a "winning" team. Case in point, last year the Cubs were 66-96, YET Carlos Zambrano was 16-7. So....techically a good pitcher on a bad team (like people argue Ben Sheets was for many years) CAN actually win. Do you EVER look at any stats? Zambrano went 16-7 with an ERA+ of 136, which is obviously very good. But the main reason he won 16 games on a bad team is because his team scored 5.83 runs a game during his starts. On the other hand, Sheets in 2004 had an ERA+ of 154 which is basically God-like, and his team averaged a measly 3.54 runs a game! Hmm, that's over a 2 run difference in support. My guess is that may have contributed to his low win total more than not being "grittier" than Zambrano. Don't you remember his 1 hitter against the Angels in 9 innings, but didn't get the win cause we didn't score til the 18th?