As a bitter Cubs fan, I feel like Wood has never lived up to his potential, and he's unlikely to get many wins the rest of the year as the team self-destructs itself into last place. They seem determined to catch the Brewers for sole occupancy of the cellar, despite the obvious talent they have.
On the other hand, I've never been a big fan of Wade Miller, and he seems destined to end his current hot streak. Wood should give you better ERA, WHIP, and K totals. Miller may produce more Wins.