no he's not gonna be in the middle full time but that's the only place he can rush best on blitzes, ...
maybe if Parson blitzes outside on certain packages while Jaylon comes up the middle (where he usually gets stonewalled)... but other than stunting/twisting with DL, that's all he knows.
that's why he limits your defense in just too many areas.
ESPN's Todd Archer (among several others) predicts Jaylon will end up as a SAM strongside and may see no more than 17-20% of snaps.
Basically means he's gonna spend much of the action on the sideline.