Well, yeah - it could end in tears was my point.
For example: My vet told me about another client of his who'd just taken on similar numbers of sheep to me although they have Suffolks and they had a disastrous lambing this year and was mainly down to two things - Firstly they had planned to lamb outdoors, but because the weather was awful this April, they decided right at the last minute to shed them, and the ewes didn't have time to develop antibodies, being in such close proximity (never lambed indoors, but apparently bringing them in in plenty of time is crucial), so they had watery mouth badly and a lot of deaths. Secondly they used an 'any' ram, who turned out to be massive, he was a pedigree and this was the only criteria in their selection, and to put him over gimmers was...not clever. So they ended up with a lot of assisting/ceasars. Their lambing percentage in the end was 60%, and a central factor to this was a poor choice of ram.