I feel like I should undermine our success at work
Would you like to talk about why?
I just want to keep my group with me for my own good
It's not advisable to sabotage a work group. Your coworkers will look at you differently and it will be awkward.
I feel this approach is necessary.
I don't this this will go the way you expect it to. When they realize that you sabotaged them they'll be angry and treat you differently. This strategy will probably create misery for you at work.