For years I've been sitting here, like a fool, assuming there was always just one, but as ‘The Bourne Legacy' repeatedly points out, it's actually quite the contrary. And unrelated to the fact that the old one doesn't want to be in these movies anymore, here are the adventures of another one who, it turns out, has been even more exciting the entire time and we didn't even know it.
And don't worry; even though the old one is referenced 6 times, perhaps giving the impression he's in this movie, he's not and good riddance.
But don't take my word for it, just listen to the lady who saw the evaluations. She's seen dozens, no, hundreds of evaluations, and she almost came in her pants when she saw these. "The old one punched like some limp wristed little faggot compared to this one," she practically said.