Although I don't hunt whitetail deer, I've read articles on just this situation. You should try directly inside the corn field. If it is tall enough to hide you. Deer like to bed in the field. The trick is to still hunt.

Start on the downwind side and look down the rows as you go. You want to move very slow. So slow that if an animal were to look at you, they wouldn't even be able to see you moving. Or at least as slow as you can. At each row, peak your head through and look down the lanes, left and right for deer bedded or feeding.

There are lot of good articles on the subject. I'm sure if you look through your old hunting mag stockpiles, you'll find some. Good luck.

Nic