The top 3 QBs in the NFL according to passing yards have not been helped by their own teams

As of today the top 3 QBs in the NFL according to passing yards are :
1. Philip Rivers (SD), 1759 yds
2. Kyle Orton (Denver), 1733 yds
3. Peyton Manning (Indy), 1609 yds

I'm not going to go into all the other stats but it can be safe to say those guys are at the top in most passing categories.  I also understand that passing yards does not always correlate to wins and those guys are putting up big numbers when they have been behind.  That is a whole diferent discussion which can be dealt with later.

A point I do want to bring up is that each of those guys have put up those numbers despite the fact that their respective teams are ranked in the bottom 10 in the NFL for pass blocking (based on PFF rankings).  Therefore they are getting very little help from their O-line, TEs etc but are still getting it done.  Let's have a look at the actual numbers.

Colts with Manning as QB :  5 sacks, 17 QB hits, 49 QB pressures, 14 dropped passes!!!
Broncos with Orton as QB : 9 sacks, 15 QB hits, 59 QB pressures, 8 dropped passes!!!!
Chargers with Rivers as QB : 11 sacks, 11 QB hits, 80 QB presssures, 6 dropped passes!!!

Some of these stats are quite astounding.  I looked through the tape of Manning's 14 dropped passes and 2 of them were in the RZ.  San Diego are ranked dead last for pass block (by PFF) and no wonder the QB has been pressured 80 times (including 35 times in one game v Seahawks week 3).