Kubiak said back in 2006 he wanted Andre Johnson's reception numbers to go up. And this happened. Here are the reception numbers for Andre Johnson's 16-game seasons for the Texans: 103-2006, 115-2008, 101-2009, 112-2012. He's had pretty sporty target/reception numbers in even the seasons he's missed games.
Of course, would it be helpful to the Texans offense to have more reliable targets? Sure would. Andre Johnson wanted a high-pick drafted wide receiver. Texans fans wanted a high-pick drafted wide receiver. Texans obviously wanted it too because they did it.
Some fans complain that Andre Johnson gets targets when he is double-covered. But this is by design. If you waited until Andre Johnson was single covered, he would never get the ball until opponents made a get-cut, bone-headed mistake. And he has been very effective even with the attention he gets because he's Andre, and the Texans challenge opponents by having him line up in different spots on the line.
Even so, if the Texans develop more reliable targets, it means the Texans can punish opponents easier if they load up too much on AJ.
There's been a great deal of discussion about the improvement of the inexperienced receivers of last year. This needs to happen because the 2012 catch rates in limited targets per Football Outsider numbers was not good: Lestar Jean (50%), DeVier Posey (43%), Keshawn Martin (36%). (Posey may or may not be back this year due to his rehabilitation from an achilles tear).
To put these numbers in perspective, the catch rates of other Texans targets were: Andre Johnson (69% which is a HUGE number given his targets), Kevin Walter (60%), James Casey (77%), Garrett Graham (70%), Owen Daniels (60%). Early in the season, all three tight ends were in the top three of tight end efficiency, but both Graham and Daniels were dealing with injuries late in the season.
That's not completely on the wide receivers because a part of quarterback-wide receiver success is chemistry. Schaub missed OTAs last year while rehabbing his foot injury, and perhaps with additional year of work with the young players, he can develop more trust with them.