Go for it, write a shitty simple game or app and then improve it so it is decent and then expand on it so it meets more of what you want it to. You have to start somewhere, and I'm willing to bet that if you look back at your own history you will find you normaly start shitty and then have gotten better so go for it.

So if he reverses and offers the person a place back, why the hell would said person accept it? and if it is a paid position that they did accept why wouldn't they be looking for something else right away, as it would only be a matter of time before they were fired for something else.

Seems like the best way to get more random is to use layers. Say a RNG based on the time (86400 seconds in the day so many seeds) have it output a 32 digit number, use this combined with the exact weather conditions somewhere to generate a 256 number, us this new seed to generate your number. You now have the number of loops needed for the 32 digit number * the loops for the 256 * the number for the last RNG. To even get the same result you have to be at the same time and weather conditions for a loop. Swap to Epoch time and use three locations weather conditions plus a cause that forces it to re-gather the data all the way each number and you have a very low chance of it getting the same input to try and loop the numbers. You could even use any number of PRNGs with differing loop cycles if you don't want to go outside of the program for data sources. Processing power vs how random becomes the only real limiting factor.