Embrace simplicity in your engineering. The best engineering usually isn’t showy or intense-looking. Given the same result, the simpler code is more valuable to your organization. This will often be unsatisfying to people’s egos, but the best engineers have nothing to prove.
Management should not make engineering decisions. People will always tell you to hire individuals who are better and smarter than you. If you take them up on their advice, then shouldn’t you be able to trust these people to make decisions that would normally fall on you? Ultimately, it’s your job as an engineering leader to build and nurture an organization. Your transition from coding to focusing exclusively on the organization probably needs to happen sooner than you think.