either. Those types of high value employees are likely looking for ownership and not just profit sharing.
And, as a caveat, I guess it depends on the term profit sharing. If it is just part of an employment contract or something that they get x% of "profits", then that would be part of what I would consider a bonus plan I think. Compared to going through the headaches of trying to comply with IRS/DOJ rules for tax-exempt profit sharing plans.