Drogba is way too slow for the RW position and he won't be able to utilize his strength and aerial talents in full effect. I think Danny is getting used to that spot and he will only get better as the season progresses.
Players like Xavi and Lampard don't grow on trees. You should understand that Ramires/Mikel also has skills that Xavi or Scholes don't posses. Just my two cents.