Some fundamentals most new teams lacks IMO

1) equiping knife for no reason
2) equiping abilities like bow, snakebite e.t.c in the middle of fight
3) never checking corners/ forgets to remember the number of corners in a site and gets slaughtered by the enemy(s) hiding in that corner.
4) peeking one by one
5) dry peeking operator
6)no trades/no crossfire/isolated
7)no map awareness
8)no awareness about places that can be wallbanged
9)miscommunication

buddy youre only looking at your region