I just hope those three didn’t flag their ability too early. It looks like there could be a lot of newcomers on the medals podium at worlds which is, literally, refreshing. It may also be interesting to look at new national trends - such as: Will Ethiopia make a run at the 1500m races and start to expand their penetration down in distance. You know the Ethiopian who won the Mexico Olympic marathon from memory was a member of their 4x400m relay team at the Melbourne Olympics.