When we profiled him for our People issue, we called Threadless founder Jake Nickell an entrepreneur. Take a look at Gap’s website and you’ll see why—since Monday, the Gap site and some stores have been selling Threadless-designed T-shirts. This “Make Great Together” campaign is a great move for Gap, which is in need of some street cred, but does Threadless risk looking like it sold out? Let’s take a look.