Use them to prototype ideas. Use them to code review the next tier to try and level them up. Reward their efforts as you're damned lucky to have them, as thei

Use them to prototype ideas. Use them to code review the next tier to try and level them up. Reward their efforts as you're damned lucky to have them, as their success = team success = your success. Or, feel threatened by them, drive them away and then complain you need more developers. A bigger group of no-troublemakers looks good and you profit from the larger empire.