Shrewdness

I am no match for him in diplomatic shrewdness.

Source: tatoeba (21966)

His shrewdness marks John for success.

Source: tatoeba (52527)

It still is true that men can start small enterprises, trusting to native shrewdness and ability to keep abreast of competitors; but area after area has been preempted altogether by the great corporations, and even in the fields which still have no great concerns, the small man starts with a handicap.

Source: tatoeba (1934627)

A man with less worldly shrewdness would never have seen how things really stood; a man with less pliability could never have adapted himself to them. It must always be remembered, that his whole administration was one long struggle: he had to maintain his master on the throne, and himself in the ministry; and this was done by sheer force of talent.

Source: wiktionary