Terrific blog. Found you accidentally on search for Al Sargent. (great post too!) re. Luck: If you feel lucky, you are.
You attract others who feel the same. It works.
Best of luck always,
Gretchen Gersh Whitman

Gretchen, here are two other posts about Alvin Sargent: here and here. The latter might be particularly helpful as Sargent describes how he approaches screenwriting in his own words.

Indeed. It's what I do -- what I know isn't that exciting, but what I can dream up and want to see but have never seen in a movie is quite interesting (and others agree). My scripts definitely have a unique creative spin to them.

Besides, I wouldn't know how to write otherwise. How does one write what they don't love?