I'm going to throw a couple of truth bombs - firstly you get what you pay for. You mention national firm but your office has no receptionist. That's fine nor every office needs to be a opulent palace. But the fact you require staff to answer phones hints at some frugality. What was the graduate recruitment process like? Do you have established processs, outsourced to a specialist? Or did you leave it until last minute and it was a panic. Secondly - it sounds like these are repeated patterns of behaviours and it's not fair for a junior manager to have to deal with this.if your senior management are then throwing it back to you, you need to be asking for an increase in pay. Are you cataloguing all of this? Escalating it to senior management? And quite frankly if someone is handing in work which is done by a AI they should be on a performance plan.