Since Shane McMahon made his return to the company there has been a lot of internal talk regarding possible legit or legit or exaggerated heat between Vince McMahon and Triple H, according to The Wrestling Observer Newsletter.
The feeling is that Vince could play Shane off against Triple H and Stephanie if he returns to the company on a full-time basis.
This week on Raw there was reportedly some changes made to the opening promo. It's quite often the case that the opening of the show is re-wrote by Vince McMahon on a regular basis, however this week's opening was originally meant to have Shane McMahon responding to what Stephanie McMahon said in her promo last week but this was omitted for Shane responding to Vince. The key line for the original promo was, that Stephanie and Triple H better make good on their promise to quit WWE if he wins at WrestleMania because if they don't, he will fire them the next night on Raw in Dallas.
It's also being reported that Shane got "lost" during his promo in Chicago, in other words, he didn't stick to the script, much like when he returned a couple weeks ago. Both times Vince reportedly did a good job at covering for him so it wasn't noticeable.