Burger could EASILY get 3-4 starts a week without anything major like benching colas or moving Eloy to RF to die.
Colas sits 1 game a week
Vaughn sits 1 game a week
Eloy sits 1 game a week (or moves to RF)
That's 3 games there without factoring a Moncada or Benintendi out days or injuries. He absolutely could easily get 300 at bats as a bench player