Do we leave our students with an evaluation or a solution?

'Good job' or 'no, that's not the way' are evaluations.  Helpful to a degree, but not overly if I was the student.

A solution on the other hand, gives me somewhere to go.  Correcting in this sense, is a positive approach especially when the correction comes in the form of giving a recipe for future action.

'Don't swing so much' provides a solution of course whilst 'keep your hand and racket closer to the impact point' is arguably even better.

Focus on 'do's' rather than 'don'ts' for powerful coaching interventions.