i still believe that 400m time does not matter in the 100m if you cannot come off the blocks. i suppose my point is not that Rudisha's 45 is not fast enough moreso that it is, he would be running a 43 if he could come off the blocks.
I'll have to watch Korir or Saruni run a 400m to decide on them.
I certainly didn't say anything about 800m runners not being able to run a 1:30 half. if i think you could get Jeremy Wariner or Ashton Eaton to run a 1:30 HM, i would be clearly in the wrong if i thought Amos couldn't.