Personally, I don't think that any team's number 1 WR should be on waivers in any league, especially someone of Holt's talent and pedigree. The fact of the matter is that the Rams will be down almost every game, will be looking to throw, and will be looking to throw those balls to Holt or dinks and dunks to Jackson.
Also, according to Pace, he thinks he'll play this week. Even if not, as Balco pointed out, they have a pretty easy schedule the rest of the way. I'm still willing to hold on to him for the foreseeable future.