So who was really leader in the Northampton arc

[victory_angel]

So in the end of the invasion episode, Donnie steps into the role of leader. However when we get to Northampton at that beginning of this season we find Raph is from all appearances in the leadership position. So what do people surmise may have happened?

So far I've come up with the following scenarios.

1. Since the show was taking from the movie with having Raph watch over Leo, and Leo having to be put in the bath to keep him hydrated.

However in the movie it is Leo who tells Raph to his face that he wasn't needed and after Raph is nearly killed Leo keeps vigil out of guilt. But in the invasion it's Donnie who tells Leo that he's leading the team to disaster.
So perhaps Donnie had been watching over Leo in the beginning and then Raph takes over because Donnie was making himself sick because of it (i.e. Barely eating, hardly sleeping) After all making medicine from mutagen doesn't sound like someone who isn't entirely in the best mind frame.

2: When they reached Northampton a leader wasn't really needed, so Raph and Donnie serve the leadership role together. Mostly Raph keeping vigil over Leo and ensuring the others keep their training in. While Donnie assists around the house such assisting with finances. Maybe issuing a set time line of how long they are going to wait for Leo to wake up. We do see Leo hunting so obviously they had gotten some food through fishing and hunting just like they got eggs from the chickens they had (and maybe a few chicken dinners).

3: Donnie feels he doesn't deserve the role of leader and hands the reigns to Raph as soon as possible.

4: Raph gets confronts Donnie about his role in what happened to Leo and takes the role of leadership from him.