Please Quantify...

We got together this week to define our team and structure.  We seemed to agree on strengths, weaknesses, and our mission but I got stuck on goal writing.  I sometimes wonder why I chose to go in to engineering in the first place (typically at about 2AM when I am still at the library) and talking about our team and project goals reiterated for me that I require numbers with my goals.  I need a way to test a hypotheses or answer a yes or no question to feel comfortable...this may not always be necessary (as my team is still trying to convince me), but it really makes me feel better.