Pair programming is kind of team-by-team... ie: not every team is able to reap its rewards. So I understand if you've not had success with it. But I have work

Pair programming is kind of team-by-team... ie: not every team is able to reap its rewards. So I understand if you've not had success with it. But I have worked on dozens of projects pairing, and I have seen the productivity gain. And that doesn't take in to account the gain is code quality or the developer training/learning that takes place. As for TDD... if you think that testing doubles development effort then you're not doing it right, or more likely you've never done it at all. Ditto about TDD being incompatible with improving UX. That's just not true.