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Then, you'd probably put Woodley at a stand-up DE position on the weak side...
You'd keep Heyward at the 5-Tech on the strong side, which is basically what he plays now (only now he lines up on the weak side)...
The NT would stay the same as well...most of the time, the NT in the 4-3 under lines up on the right shoulder of the Center, but there's no reason that you couldn't line him up directly over the Center's helmet and make him responsible for two gaps...
Steelers 2014 Draft
1-Darqueze Dennard CB Michigan State
2-Jordan Matthews WR Vanderbilt
3-Jordan Tripp ILB/OLB Montana
4-Christian Jones ILB Florida State
5-Brent Urban DE Virginia
5-Michael Schofield OG/OT Michigan
6-Kadeem Edwards OG Tennessee State
6-Ben Gardner DE Stanford
7-Aaron Colvin CB Oklahoma