The business cycle is a natural part of a healthy capitalist economy. It can be mitigated to some extent by monitory policy. Using fiscal policy to manipulate the economy has an inherent unfairness which makes it a dangerous tool. Full employment is not the goal of an economy. Profit for owners is.
Full employment is a natural consequence of an economy successfully seeking profit.
Adam Smith's guiding hand still works well. The time for powerful unions has past. Its ridiculous that Professional Baseball players, with an enormous minimum wage, are entitled to collective bargaining rights. It insults those who have to work hard just to survive. The rights of such workers must be protected, but the balance of power is too far to that side.