Quote to Order - Updated changes on SO

Is there any way to update a sales order’s salesperson that was created from a quote? The salesperson person field is grayed out if we have multiple salesperson and the only one available to change is the primary salesperson. We are not able to update the other salesperson since it was created from a quote. The option to delete the sales order and resubmit from a quote is not a viable option and looking to update it on the current sales order.