It was simply a case of differing definitions of quid pro quo.
The movement of peoples from west to east was to be succeeded by a movement of peoples from east to west, and for this fresh war another leader was necessary, having qualities and views differing from Kutuzov's and animated by different motives.
Eight very broad radial canals; ex-umbrella often provided with lateral outgrowths; tentacles differing in size, but in a single row.
Shauna and mother Kim differing on their opinion of the wedding dress.
This is a recognized and legitimate business risk, differing only in degree from the risks attending all business operations.