The Texans have traded 27-year old DT Travis Johnson to the Chargers for a conditional sixth round pick.  Johnson played in 15 games (14 starts) for the Texans last season and he made 28 tackles, had 1 sack, defensed 2 passes and forced a fumble.  He played 4 years with the Texans appearing in 54 games (38 starts) in which he made 106 tackles, had 2 sacks, defensed 8 passes, forced a fumble and he intercepted 1 pass.  It seems as if the Chargers got the better end of this deal.