Probably Mo is going to compete in both 10000m and the marathon (as Galen did).
And Mo knows that if Galen was 3rd and 5th in each event, he could medal in both, because, it seems like there's no real competition for him in 10000m)
Both athletes are going to be there in 2020 (Mo with 37 years old and probably with a lack of speed for 3000/5000m, and Eliud with 35, 100% focused in the marathon), not only "competing", but also as medal contenders.
Who wins between Mo and Eliud in a 2:09/2:10 tactical marathon? Eliud's stamina or Mo's final speed?