1. Rotate developers every milestone. Group A: Codes and takes care of product tasks Group B: Investigates, Research and writes Test code. Important!:

1. Rotate developers every milestone. Group A: Codes and takes care of product tasks Group B: Investigates, Research and writes Test code. Important!: Make sure you set a vision for the team and always remind them of it through inspirational material so their "extra" work/research naturally tends towards it (aka: don't make google's mistake, bunch of innovations going nowhere; hence all the close products).