It would be a great loss if I should lose him.I can ill afford to lose him
e.g. He is an essential asset, I cannot afford loosing him without damaging the company.
It's an ill wind - someone profits from every lossIt's an ill wind that blows nobody good.
Said comfortingly of misfortunes that may bring some benefits.
The full saying is 'It's an ill wind that blows nobody good', the emphasis being 'it is indeed a harsh wind if it damages everybody'.
It was already proverbial when recorded by Thomas Tusser in Five Hundred Points of Good Husbandry (1580) as 'It is an ill wind turns to good' (... if it makes nobody turn to doing something worthwhile), a version that makes better sense in implying that misfortune brings out the best in people.
They were better prepared for battle than those of the enemy.Our soldiers were better drilled than those of the enemy