A 14 day business trip with one bag is very easy to do.

What you would pack depends on
a) Do you need do wear a suit every day?
b) Will you be seeing the same people or different people each day?
( if different people they won't know you are wearing the same outfit)
c) Does your company pay for laundry?
d) If c is not true do you mind paying yourself?
e) If d is not true do you mind washing the stuff yourself?