Wayne Rooney without doubt had a very career as a player, but that's absolutely been the opposite with his managerial career and I think it's be better for him not to continue with the profession as he's failed in almost all the previous attempts.
Failing is more like a lesson learnt and when you're bouncing back, you're becoming more open and graded in good position of succeeding. Making attempts and failing would discouraged one from taking more steps, instead he settle for lesser results. Wayne Rooney have been pursuing the race to be a competent manager for years since retiring as a player but he's not lucky enough to hold on any solid ground. Wayne Rooney have enjoyed his moment as a player but he can't suit into the race of managerial role because he doesn't have what it takes to become like other competent manager.
Rooney still has a long way to go to become a professional coach, so keep trying because becoming a coach is not easy. Rooney may have been a shining star as a player in the past but that doesn't mean he can hold the same position as a coach. There have been many star players in the past and trying to make a career as a coach ended up not being a good fit. I don't know why but I think being a coach requires having the ability not only to practice but to be supported by the theory learned. Compared to most theories, the practice is lacking sometimes making the coach quite recognized on the field. Everyone has their own portion of their career and those who are great coaches today, even when they were still playing on the field, did not stand out.
Birmingham City was targetting Rooney to bringing this team to reach at least play off position on league standings but under Rooney Birmingham City was performing poorly because in the last 15 matches Birmingham City has suffering 9 loses and only able to collect 10 points and their position also not secured because Birmingham City currently at 20th place and they possibly can be relegated this season so it's normal if Birmingham City sacked him because Rooney was unable to meet the target and as a manager Rooney is still categorized as young manager because Rooney is still 38 years old but his career as a manager not as good as when he was still an active player because as a manager Rooney has been sacked several times in different teams and he was joining with Gerrard, Gary Neville, and Lampard as gold generation of England who good as a player but bad as a manager