According to Adam Schefter, Leonard Davis was among those that were informed by the Cowboys that they will be released this week. As previously mentioned here on TLH, Marc Colombo will also be cut. You might as well add Marion Barber to that list too.
This move leaves the Cowboys with basically one lineman under contract — Andre Gurode. It also makes it imperative that they re-sign Kyle Kosier. There is the possibility that the Cowboys will re-sign Colombo and Davis to cheaper deals, but as of some time this week, the two lineman will be up for grabs. Whatever the Cowboys plan on doing, they will need to address their depth issues up front. If they go into the season thin, they would be just an injury away from dire straights.