Ok, so after running a list last night that had Esege with Recon Specialist acting as a Focus 'bank' for the rest of the squadron, I got thinking about how he would interact with Garven's ability.
Esege reads:
"When another friendly ship at Range 1-2 is attacking, it may treat your focus tokens as its own."
And Garven:
"After spending a focus token, you may place that token on any other friendly ship at Range 1-2 (instead of discarding it)."
Now the key here (I think) is the wording of Esege's ability "it may treat your focus tokens as its own."
So what I'm thinking here, is that Garven could use one of Esege's focus tokens when he attacks, and then give it back to Esege or another squad mate, as he doesn't spend Esege's token, he gets to treat it as his own. In effect Esege is giving him a token, which he can then use his own ability to pass on.
Am I making sense with this? What do people think?