i dont know how much $$ you have.. but maybe wait until Friday to fire your lvl 5 trainer, you have paid him for this week, so might as well get the training.. and if you fire him today, i believe you are just going to have to pay the $60k again as severance fee.
after training on friday.. FIRE your lvl 5 60k trainer... no if, buts or maybes.. you need to make sure he is gone by Sunday so that you dont pay his salary again
search for new staff member.. set up the search so that you are looking for an Advanced trainer, with a maximum salary of $15,000 per week.. these are a dime a dozen, and you should be able to pick 1 up for between $1,000 and $10,000,
After this, you will be saving $45,000 per week... dont spend it.. save it, and buy 1 good trainee of Perennial All-star potential or better.
Also, if you still have that ridiculous 30k doctor, fire him, and search for a competent doctor with a maximum salary of $10,000 per week.. these are again a dime a dozen and you should get 1 for $1,000