Two years seems like an excessive time to be on probation. In state gov. the probationary period is usually six months. Extending it to one year ok, but two years is way too long. In addition, if you're going to have such a rule for civil servants, then why not have this same rule extend to elected officials-Congress, the President, and appointed officials? Under the current administration, Trump would not have passed his probationary period as he is clearly not qualified for the position.