Look at his test record, he averages 50 and has been among the most consistent player probably after Dravid since 2002. Based on that performance doesn't he deserve that chance ahead of Raina, Gambhir or Kaif and remember on his day sehwag can destroy the likes of McGrath, Pollock, Brett Lee etc which Kaif, Raina or Gambhir will be never be able to.