MIke Jacobs is a waste of space

When Daniel Murphy went down with his knee injury, Mike Jacobs was assured of a starter's spot, and even batted fourth. But what did Jacobs deserve to get that spot? Chris Carter had a much better spring, and even had the praise of Jerry Manuel, being called "an animal". But Omar Minaya was impressed by Jacobs' past history of hitting homers, if this quote means anything:

"If you see the teams in the World Series, they’ve got power," Mets General Manager Omar Minaya said. "You’ve got to be able to break the game open. It’s not only home runs, it’s slugging. I think the right word is slug. You’ve got to get the extra bases."

The problem is that Jacobs really doesn't do anything, except hit an occasional homer. Last year he had a .305 wOBA, 25 points below league average, and 45 points below his positional average, and 8 points behind his position replacement level (.313). He had a .282 BABIP, right along his career average, and his xBABIP was .303, so he wasn't extremely unlucky. Instead, he just had a bad season. He then followed that up batting .194 in the Spring. Chris Carter had a far superior spring, and had a .360 wOBA last year, and a .376 wOBA the year before, both in AAA. He can actually play a decent right or left field contrary to popular belief, and despite being pretty bad at first, he's better than Jacobs. In the end, Jacobs shouldn't even be on the team, let alone batting fourth, and if he is on the team, what is he doing batting fourth? Your 3rd best hitter should bat fourth, than third, than fifth. Jacobs should hit 7th or 8th, in front of Cora, but behind Francoeur.
In the end this is a subject that I'm nitpicking on, but its just another example of bad mismanagement by Jerry and Omar, and also shows that Omar only has knowledge of players he once had.