A player will not pop in any defence 2 weeks in a row (he can pop od one week and id the next week) <- that is 100% truth.
I am not quite sure this is 100% truth.
With 1-position training, an 18-year old, 7'4+ center might pop ID 2 weeks in a row.
However, under the conditions described in this thread, it is indeed impossible.
"I don't know half of you half as well as I should like; and I like less than half of you half as well as you deserve."