As a new turkey hunter you'll learn something new every time out, and you'll keep learning as you get older.
As for where to set up, I'd set up right dead center in the middle of the open field in a chair of some kind, and you'll learn 2 things from the turkey's.
1. The guy that told you to sit there is nuts. [:)]
2. It don't pay to sit there again. [:D]
Now on the serious side, the center of that field is a good place to start. Get there good and early and listen where the birds are roosted when they sound off. Then move in on them. try to get with in about 150yds of where they are and set up. If you can't get a bird to work for you, then you may want to move to the area where you heard them in when you were scouting, later in the morning and set up there. Let the birds tell you where to go.
Good luck and hunt safe. [;)]
WI Youth & LTH Mentor
Dodge Co. NWTF