I don't read into Pena's alleged comments as a knock against Collins, too much. Pena is a borderline NFL prospect, who put up monster numbers last year, and likely needs another monster year to get drafted.
Collins -- as would be EVERY other QB in D1 football, including the Manning's, Bennet's, etc. of the college football landscape -- would be a step down in terms of productivity from McCord. Period, hard stop. And Collins is unproven, so not surprised AT ALL that Pena expressed concern.
Doesn't mean that Collins's long term potential isn't strong, or that he would fail if he becomes the starter. Pena was just looking out for his self-interests.
And I don't even read much into the staff going out and snagging Angeli. No roster spot is safe; it is the staffs' job to go out and recruit OVER every single player on the roster, and add to the talent base at every position. They did this with Collins, despite having Jakhari Williams in house. And they did it after spring ball with Anglei, despite having Collins in the fold.
It is up to the returning players to fend off the newcomers. And it is up to the newcomers to leapfrog the incumbents.
May the best players earn the PT.