This guy here talking about threshold and tempo runs. he says that he sees many guys running 30 seconds slowerthan their PB for 5k thinking it's tempo. He says it's way faster too be tempo, and this is a threshold run, and he claims that doing a run like that every week is too much and that they will burn themselves out.
Yet, when I look at the training programs of the elites, especially long distance track runners (5k-10k) (Bekele at the time, Farah etc..) all of them have in their program a weekly long hard fast pace run. In Bekele's case it's written "threshold- 15-30k run half marathon-marathon pacs, 4:25-4:45 minutes per mile- this is very fast and was done by him at the time every week. I'm not saying everyone can run 15-30k fast everyweek, but definitely a weekly run of 20-30 minutes in a fast pace close to race pace (threshold), otherwise I can't see how on race day you can suddenly pull a fast pace for long time when you rarely been training at it.
So what do you say about this guy's argument?