no it's fine and it's fairly common.
Most psychologists do not want to "work for you" though. they arent midlevels after all.
Also, the psychiatrist really needs to ask themselves if they want to have lcsws/lpcs on salaried staff, or just share office with them to reduce overhead? Many lcsws/lpcs would prefer to be salaried staff and get benefits, someone to pay the back end of their fica, health insurance, a steady paycheck regardless of no shows, not worried about billing/collections/etc.......these people are expensive. Remember if there salary is 25 dollars an hr for example, your total cost to employ them will be a lot more than that....after benefits and employment taxes are considered. When you consider everything(and how much they are actually being reimbursed total for individual therapy), it often makes more sense to just work with them in the same building and not have them as salaried staff.....