Depending upon the nature of the problem and your chain of command, evaluating the best solutions may be performed by assigned teams, team leads, or forwarded upward to major corporate decision makers.
I used weekly round-table discussions to solicit creative input and ensured that each designer was given full autonomy to do their best work.
I also introduced monthly team-based competitions that helped to build morale, spark exciting new ideas, and improve collaboration.
For example, a cable television technician might be trying to resolve a customer problem with a weak signal.
A teacher might need to figure out how to improve the performance of her students on a writing proficiency test.