She had also been the paid secretary of an important learned society in her twenties not long after she left college, and knew well that she had been a conspicuous success.

She had a great love, indeed, for any sort of organizing, large and small, for putting things straight, and running them.

She was burning to put Mannering straight--and run it.
She knew she could.

Organizing means not doing things yourself, but finding the right people to do them.

And she had always been good at finding the right people--putting the round pegs into the round holes.
All very well, however, to talk of running the Squire's estate! What was to be done with the Squire?
Take the codicil business.