To be fair to Enzo and Cody (and maybe even memphis, I need to go rewatch that season). These guys don't know what it means to make a big move on their own. They never had to. They essentially got dragged to the final 2.
Dani and Nicole both made moves in their OG season.
I'm watching Nicole's (and Cody/Derrick) again right now and I miss this Nicole a lot. She was so likable. I am not sure where she took a bad turn her 2nd season. Can't remember that one much either but comparing her from her first to now... she was the Kevin/Day/Bay in her original season and dang she was outcasted hardcore and had a lot of shitty things happen to her in the game. Best friend betraying her TWICE, caleb putting her on slob 2 weeks in a row when she was already pretty much going home (for the 2nd time - she won the battle back). If I were her I would like make damn sure I was in a huge alliance right from the get-go in an allstar season.