There is an additional dimension here - some people start off great and then become toxic due to external conditions (home problems, health issues, organizational strife). Sometimes those problems are resolvable (or mitigable). Sometimes your "problem child" becomes a stalwart after their situation is resolved.
A good manager can root cause these issues and then determine if the resolution is workable in a reasonable timeframe. A great manager keeps this in mind while coordinating all activities and requires their direct reports to assist them in doing this.
Finally, great leaders are sometimes not great managers. Another note - even managers can shift from good/great/bad over time.
A good manager can root cause these issues and then determine if the resolution is workable in a reasonable timeframe. A great manager keeps this in mind while coordinating all activities and requires their direct reports to assist them in doing this.
Finally, great leaders are sometimes not great managers. Another note - even managers can shift from good/great/bad over time.