The phrase "a bunch of former" is correct and usable in written English.
It can be used to refer to a group of people who previously held a certain position or status, often in a casual or informal context.
Example: "At the reunion, there were a bunch of former classmates who hadn't seen each other in years."
Alternatives: "a group of former" or "a number of former".
A bunch of former homeless douchebags?
A bunch of former presidential candidates stiff their small-business customers.
In response to Harman's comments, Vote Leave's Suzanne Evans said it was "utterly laughable" to suggest that "we need a bunch of former communist men in the EU commission to fight for women's rights".
A year from retirement after decades working in a bank, Ger Coolan is contemplating the unlikeliest switch in his political conduct ever – voting for a bunch of former Maoists.
It tells once again the stories that Silicon Valley loves to hear about itself: how the modern notion of innovation was created in a bunch of former cherry, apricot and almond orchards; that white-collar workers first realized here that they could tell management to stuff it and go get a better job down the street, and that building the future was not and never is about the money.
Coveo, founded in 2005, is managed by a bunch of former Taleo and Copernic executives.
Imagine a bunch of formers getting together over coffee and a pack of cigarettes to talk about how they resisted the urge to beat someone senseless that day or instead succumbed to the temptation of odious thoughts.
Today Michael is in the jungle with Tinchy and Kendra and a bunch of other former celebrities trying to become celebrities again by eating witchetty grubs.
Although the PSA is more anti-Trump than pro-Hillary, a bunch of other former West Wing cast members will be campaigning for the Democrat in Ohio this weekend, according to a Clinton aide.
They are a bunch of worthless former Komsomol activists turned democrats turned patriots who grabbed everything into their hands.
The notion of a still-young Hamels someday facing a bunch of older former teammates seems strange, but it could happen.
