Just a different style.
How many have actually held out vs other agents?
How many have signed offer sheets vs other agents?
I'm sure there are other examples of Agents leveraging playing over seas.
How many of Ferris' players have gone over seas vs other agents?
Well no player ends up going overseas due to a contract dispute. I do not remember a case of that happening except Mark Giordano like 12 years ago.
All I can say is that Ferris has negotiated for 8 major clients right now: Taylor Hall, Mitch Marner, Josh Anderson, Andreas Athanasiou, Brendan Perlini, Zach Bogosian, Matt Nieto and Sam Bennett. Of those, all except Hall and Nieto went into September or Training Camp before they were resolved, with at least three of those threatening to go to Europe publicly. In all cases except Hall and Marner, they settled on below value prove-it bridge deals and so far Bogosian is the only one who has been able to follow up with his play enough to earn a decent extension, and the rest are TBD who, as it stands, look like they are going to need to take more prove-it deals or change from Ferris' strategy if they want to have NHL jobs going forward.
We'll see how it works out for guys like Mete, Broberg, Zadina, Frost and Studnicka going forward.
Nylander's agent, Lewis Gross, has done somewhat of a similar thing. Krug, Gaudreau and Nylander, arguably his three top clients, all played hard ball. However he has a lot lower percentage than Ferris, as he has a number of clients, including a couple higher end ones in Dumoulin and Saad, where he had no issues at all.
Kurt Overhardt has done it a few times as well, but that seems to be more at the urging of his clients. He has a ton of clients who signed some nice deals with their teams. Trouba, Turris and Johansen did not like their teams, but once they went somewhere they liked, they signed fair deals.
Ultimately, Ferris' strategy works if he has clients who are worth doing it. Right now, he only has two that fit in that category. He has made Marner, Hall and Bogosian a decent amount of money doing it that way (although literally any NHL agent would have made those three a decent amount of money no matter what), but he has also cost AA, Anderson, Nieto, Bennett and Perlini a fair amount of money as well. So it's a double-edged sword that has hurt him and his clients more than it has helped.