I think elections should stay as two seasons to give nations a chance to replace bad managers. It's very hard to replace a manager by dropping them below the 25% positive threshold even if they are doing dodgy stuff.
In Germany, we managed to get rid of two managers in one season. It's definitely possible. ;) But: it's almost impossible for smaller or especially micro-nations. And yes, getting elected for 4 seasons does have benefits. But there should also be an option that an elected manager could "retire" early. I love coaching NT/ U21-teams. But I was very happy that I could step down before the last U21 elections since my RL was a bit in turmoil and I didn't have the time any more to manage the u21 in a good way ... I probably would have managed some ok results but not like the current manager who has time and is motivated ...
So: 4 seasons, possibility to step down after two seasons. And possibility to vote someone out more easily. If we changed the time to 4 seasons...
Winner: 1x Consolation Tournament (U21), 2x Goldene Ananas, 1x Goldene Himbeere, 2x Goldener Erdapfel, 3x Bronze Medal (U21)