I think the issue here is that programmers, and MBA's for that matter, tend to be convergent-thinkers, whereas designers tend to be divergent-thinkers. Relying

I think the issue here is that programmers, and MBA's for that matter, tend to be convergent-thinkers, whereas designers tend to be divergent-thinkers. Relying on a convergent thought process to solve a problem isn't the most effective way to tackle an issue and therefore involving designers in this process produces far more effective results.