By Andrew McCarty Dallas Cowboys star defender Micah Parsons raised a few eyebrows with his comments about San Francisco 49ers quarterback Brock Purdy over the weekend. “Down 21 and there no shots or development throws!” Parsons tweeted. “Should tell you all you need to know!” Parsons was criticized for his comments on social media and now one former Cowboys star has delivered a message to him. Michael Irvin took to the Fox Sports airwaves to let Parsons know he better be able to back up what he says. “When I saw it I thought, I like Deebo standing up for Brock Purdy. This is the time we’re in…