I've never heard any type of rumor that states the Pegulas meddle in roster moves. Maybe I just missed it. If it's out there please provide it.
No GM is going to say "The owner made me do this", at least not in public. That being said, I think most of the 'bad' moves over the years tend of have 'impatient billionaire fan'
And before I start down this list, I think it IS fair to point out that the Pegula's HAVE spent more money on the Sabres than any previous owner and the team is almost up near the cap.
Ville Leino - The deal was so far out of left field and for so MUCH over his market given his career, it was really out of character for the GM (Regier). The plan at the time was obviously for Richards when they were told not to waste their time. Billionaire who wants to make a splash just was spurned by the top player on the market? That was 100% a move that was the owner telling the GM 'get it done'
Now, the Murray-era moves, it's harder to discern where Murray's ego ended and the Pegula's began. The Kane move was a pretty nuts trade, at the time and in hindsight, but it was also Murray's MO to just go and overpay for pieces he wanted.
In the J-Botts era, the RoR trade seemed like it may have suffered from some owner interference. One of two things happened: Jason Botterill was really bad at his job and ran out of time to make the deal before the owners deadline of 7/1 so they didn't have to pay the bonus OR the owners changed their mind about paying the bonus late into the game and forced the GM to struggle to find a fit. Given that the Sabres had to take back salary to match RoR's contract AND the Blues signed a center UFA on 7/1, it really feels like the Pegula's told GMJB they weren't paying the bonus on a player that wasn't going to be there and to get a deal done.
The Skinner deal also screams of a 'Get it done' mandate from the ownership. There was pretty much no 'negotiation' from the Skinner group. Full NMC+ Full Term + overmarket salary? That's a team taken hostage by the player and agent.
And then comes the Adams era. This was a pure ego move by the Pegula's. The Pegula's obviously don't feel that running a hockey team is that difficult. Going back and look at the refusal of bringing in any sort of senior adviser or team president, they feel they can 'handle it'. The last straw for me was the Botterill firing. Now, I was in favor of the GMJB Firing. He did a terrible job. But the vote of confidence in GMJB, then the axing him followed by purging of a good portion of the front office, not to replace them, but to cut overhead. And to put a loyalist with zero NHL/AHL/NCAA/OHL/WHL/QMJHL/ECHL/UHL/SEL/KHL front office experience in charge of running both the AHL and NHL teams? Jesus. And to CONTINUE to let him run the draft/UFA period with a coach who also has zero front office experience (in hockey anyways) and see the result (dead last finish) and to CONTINUE on with that front office structure? The big hire being adding 1 AGM who was only able to get into hockey management because he was the owners son?
The Pegula's clearly have influence over player moves and only hire people who LET THEM keep that influence. I think on the Bills side of thing, Beane and McDermott know how to manage the Pegula's a bit and make them feel like they have a voice in the process even if they do pretty much what they want. On the Sabres side of things, it certainly feels like the Pegula's exert their will on the front office. And it's really impossible to say they don't because these same non sensical, left field moves have happened across 4 different GMs while the Pegula's were owners. They are the only common thread.
I'm very grateful to the Pegula's for spending on the team while losing money. But I'm furious at them for not seeing the obvious problem is their decision making and interference are the problem with the Sabres.