SANTA CLARA, Calif. — John Lynch said a lot in his press conference Monday. But he didn’t actually say much. In all, Kyle Shanahan’s hand-picked general manager turned in a perfect human-shield performance to kick off NFL draft week. Or, in other words, he earned his salary for the month, all while making sure Deebo Samuel couldn’t increase his salary demands. Shanahan has said that Lynch could be the president one day. He remains a sought-after analyst for NFL games. You can understand those stances a bit better after Lynch’s 30-minute filibuster and question-and-acknowledge session (answers …