By Tzvi Machlin As the Dallas Cowboys retool this offseason, they’re trying to clear a lot of extra cap space. To that end, they’re releasing a starting lineman they owe a lot of money to. According to ESPN Cowboys insider Todd Archer, the Cowboys are releasing starting tackle La’el Collins today. It will be a post-June 1 cut that will save them about $10 million in cap space. The Cowboys were reportedly trying to trade Collins recently. But it appears that nothing materialized. He will now his the open market where he’s likely to get a lot of good offers. Collins played 12 games for the Cowbo…