There's a negative aspect to humanity that shows up in every environment where people work in teams.
It's called, "B*tching".
A softer way to say it is that people love to complain, usually about things they can't control. Left unchecked, the complaining can turn into a proxy or an excuse for a lack of performance.
"We didn't get the support we needed." "Everyone was against us." "We couldn't get anyone to cooperate."
The smartest leadership I can summon about complaining is the following statement:
"We're Not Good Enough to Complain".
What's that mean? It means that if you're performing at an average or below average level, you might want to reconsider the automatic reflex to complain about others as a reason/excuse for your crappy performance, either as a team or as an individual.
I got my start in college basketball as an assistant coach. One of the things I noticed was that when you were down by 20 and complaining about calls, the best officials wouldn't get mad, they'd just start laughing at you.
Brutal, but true. The laughter was their way of saying "you suck" and "why don't you go back and work on what you can control, come back the next time and play a tighter game, then maybe I'll entertain your issues."
Until that happens? You're not good enough to complain.
Go get better, control your performance and then your complaints might get some attention. Until then, stop the finger pointing and general b*tching.
It's as true in the business world as it is in sports.