What could be Dave Canales’ strategy for not playing starters in any preseason games yet?

Will Brinson, CBS Sports, explains why he thinks the Panthers haven’t used any of their starters yet and how he sees this roster shaping up for regular season. 

Is it a big deal that we haven’t seen starters on the field yet for the Carolina Panthers in their last two preseason games? What does Will think is behind Dave Canales’ thought process with this strategy?