Jon Heyman has a piece up about general managers who are on the hot seat, and Jon Daniels is one of 7 g.m.s listed, although Heyman's comments about Daniels are generally positive...
He does acknowledge that if Nolan Ryan, in his role as team president, opts to lop off some heads over the season's awful start, Ron Washington is more likely to be on the chopping block than Daniels.