Management game is a very unique idea but it can be very easily unbalanced.
The idea of many professions coming to the player and choosing who to hire and who to fire is well made but I would change few things. Firstly, since day 3/4 I would make the queue random with some fixed characters. Secondly, the merchant tab should me moved to the summary screen at the end of the day. I found it after I failed like 3 times.