according to wrestlinginc.com
WWE creative head Michael Hayes came up with the idea for exploiting Jerry Lawler's heart attack on RAW a couple of weeks ago. Hayes felt that the angle would get Punk super heat, and it'd carry over with non-Lawler affiliated story lines.
According to a source, Paul Heyman lobbied to have the angle changed to a slightly more tasteful version that would be more true to the Punk character. However, Hayes was said to be unrelenting in pushing his idea.