The math will tell you.
Let's say you keep him until his salary reaches 16K, and then you replace him with another guy with 11K salary who costs you 32k to buy.
So the cost of firing one and hiring the new one is 48K.
It's hard to figure exactly what weekly salaries will be without a program, but you're saving 5K a week to start with this new trainer and the gap would only increase each week as a more expensive salary will go up at a faster rate.
So if you assume 5K savings per week, by the 10th week you have made up your cost of replacing him. After that, it's all savings for you. So as long as you don't replace your guy in that timeframe that's before you make up the cost of replacement, you're doing fine.
I generally replace in 1.5-2 seasons because that's when it makes sense to spend the money to save enough by getting a much lower-priced guy. If I only get a guy whose salary is 3K less than his predecessor, now we're talking maybe 15-16 weeks to make up the cost of replacement. And that's possibly not worth it.
(This will also help you figure out how much is worth paying in the auction for a new staff member. I don't like spending more than twice a guy's salary, but for trainers it can be hard to get a low salary guy without spending a lot. Just do the math.)
Last edited by redcped at 8/4/2013 5:49:55 PM