Bears RB D'Andre Swift somehow 'finding another gear,' sees fast start coming for rushing attack

Here’s a great place to start for any running back: The Bears’ D’Andre Swift got the work he needed in training camp but didn’t play a snap in a preseason game and is fully healthy heading toward the season opener. ‘‘Hell, yeah,’’ Swift said last week. He made that celebratory comment a few days before exiting late in the Bears’ final preseason practice Thursday, but a source said that was merely cramping and that there’s no concern about him going into the regular-season opener Sept. 13 at the…