You haven't replaced Flintoff and he wasn't amazing either. Strauss won't be hard to replace as he was quite poor and average at best. As for replacing legends, it's always hard. But I am feeling positive about Pujara and Kohli, in fact I am sure they will make that spot theirs and succeed. The only batsmen I am worried about is Gambhir who is out of form and cementing the no6 spot. It already has quite a settled look.
I think Yuvraj can cope with pressure at home. Against Pak I remember we were losing wickets all round and he still hit a 100. It is at home too but just a case of him recovering from illness. I said 300 because I do believe that is the scenario he will be walking into mostly.