The value of SG and SRT's bowling and slip catching will only be realised after they retire from the ODI game. I mean, they have been very ordinary in the slips this series and its affected the results. If you take out SG and SRT, tell me which of the bowlers will you bowlas the 6th bowler in Australia, SA,England,NZ? You need folks who can bowl medium pace, but all the part timers we have had in the side in the past 5 years have been spinners. Don't count JP,sodhi etc in this list we always called them all rounders. A good bench mark of this was, did we ever go in with 5 batsmen and have one of JP, Sodhi or RObin in those 5 batsmen? No.
Once these two retire all talk of 7 batsmen will go out of the window unless we get VS back ( his fielding is all aloo paratha though thats the worry), Yuvi and find one batsan that can bowl military medium pace. Else we will play 1,2,3 all rounders like IKP etc.
Of course, in the case SRT , he can bowl everythings so thats a huge plus.