Baby size Einstein coat (2 questions)

[cookworm]

First, regarding pockets: The coat is entirely knit in garter stitch. Can I add on a pocket if I wanted to in garter stitch, too, or does it have to be stockinette? If I wanted to do a fair isle design or intarsia on the pocket, can this be done in garter stitch, or will it look weird?

My next question is that I've made the baby size Einstein coat three times, and all three times, the third buttonhole came out placed very close to the second one. It looks kind of awkward. I can rework the pattern I'm sure so that this doesn't happen, but I would have to really sit down and figure this out. The picture in Sally Melville's book doesn't show this flaw, so I'm wondering...is it something I'm not doing right? Has anybody else made this coat and has this problem with it? I made a rough illustration of this problem; it's the two buttons I colored in.