Wells and Borchard are basically the same age, both born in November of 1978.
I don't think it's fair to compare the two either, they are different types of players.
However the fact that Joe B hasn't improved definitely makes me wonder if he will ever make it. I think being the intelligent, hard worker he is, he should be able to at least become a solid everyday player. However, the chances of superstardom are dwindling IMO...