why does Brinker believe Gene has put off enlisting? How does Brinker say Finny should be treated? Why ?

"Devon again becomes swept up by the war, with a lot of recruitment and many boys planning to go into military training or military school. None of them are in a real hurry, however, as many of them are only planning on training to keep them out of combat for as long as possible. Brinker gets people in the war spirit, but is spending plenty of time making up schemes that will also keep him away from the front." from grade saver.com

Also brinker tells gene that finny should know the truth and goes as far as to stage a mock trial of the accident.