This is also fine. But look at the reply below yours, when the 'team manager' is littering their comments with 'my top performers are ghosts' and 'I don't care.'
Your strategy involves focus and care applied through one perspective. My strategy involves focus and care applied through another perspective. Yours is arguably better, but I don't think mine is insecure, mine is perhaps a reaction to some of the nonsense I'm seeing in this thread in which managers admit they have staff who they think are outsourcing their work or just can't do the job but are 'uncomfortable' dealing with it. I don't think they're uncomfortable, I just think they don't care. I can't stand don't carers. I've had to work on too many teams managed by don't carers and staffed with don't carers and I just don't get the mentality. It annoys me.