Explain this quote from Things Fall Apart - "Amalinze was a wily craftsman, but Okonkwo was as slippery as a fish in water."

With the use of these colorful descriptions, the author is
comparing Amalinze, the famed wrestler, to Okonkwo, the young upstart who was finally
able to beat him.

Amalinze was known as "Amalinze the Cat"
because of his great skill in wrestling. Amalinze was legendary, and for seven years, no
one could beat him. The author describes Amalinze's approach to his sport, comparing it
to a craftsman who knows his skill better than anyone else. "Wily" means "artful" or
"cunning," and Amalinze, the "wily craftsman," had such knowledge of his craft that he
was, for a great many years, the undisputed best.

The
author goes on to describe Okonkwo metaphorically as being "as slippery as a fish in
water." A fish in water, quick and nimble, is almost impossible to catch, and when
Okonkwo goes up against Amalinze in the fateful wrestling match, the older man is unable
to pin him down. Okonkwo, young, athletic, and strong, is the first to vanquish Amalinze
in seven years, as youthful physical ability, as signified by the "slippery fish,"
trumps age and experience, as delineated by the "wily craftsman." The "fish" has eluded
the "Cat" and overthrown him, bringing great honor and pride to the village, and
enormous fame to Okonkwo himself (Chapter 1).