Trey Lance's development is predictably a rollercoaster ride for San Francisco 49ers fans, local and national media alike. Some of the reaction is bordering on insanity, like former NFL coach Mike Martz' comments about the young quarterbacks from Sunday's season opener. The 49ers signed veteran running back Marlon Mack to the practice squad.San Francisco 49ers fans are treated to daily news and analysis with Locked On 49ers, hosted by football analyst Brian Peacock and former NFL/AFL cornerback Eric Crocker.Make Locked On 49ers your first listen on all your favorite podcast platforms:Apple Podcasts: https://podcasts.apple.com/us/podcast/locked-on-49ers-daily-podcast-on-the-san-francisco-49ers/id1143358718Spotify: https://open.spotify.com/show/38g7iUBvJlKCjpw2WGjgoz?si=cKyhT_6vRn21XncbPJ2xYwStreaming on Megaphone: https://cms.megaphone.fm/channel/lockedon49ersFollow Brian Peacock and Eric Crocker on Twitter, where they’ll be sharing the latest news about the Niners and talking with fans.Twitter: twitter.com/BDPeacock, twitter.com/eric_crockerSupport Us By Supporting Our Sponsors!LinkedInLinkedIn Jobs helps you find the candidates you want to talk to, faster. Post your job for free at LinkedIn.com/LOCKEDONNFLBuilt BarBuilt Bar is a protein bar that tastes like a candy bar. Go to builtbar.com and use promo code “LOCKEDON15,” and you’ll get 15% off your next order.BetOnlineBetOnline.net has you covered this season with more props, odds and lines than ever before. BetOnline – Where The Game Starts!BriteCoThe guys at BriteCo Jewelry Insurance made buying insurance for your engagement ring, your watch, or whatever so easy you can get covered in 2 minutes on your cell phone. You won't find a better deal on coverage that's so affordable. Go to https://brite.co/lockedonPrizePicksFirst time users can receive a 100% instant deposit match up to $100 with promo code LOCKEDON. That’s PrizePicks.com – promo code; LOCKEDONTuroDitch boring rental cars and find your drive at Turo.com Learn more about your ad choices. Visit podcastchoices.com/adchoices