Vance wants to construct a circle tangent to all three sides of the acute scalene triangle LMN using the following steps

1. He will draw altitudes from vertex L and vertex M, mark their intersection point as O
   
2. He will draw the perpendicular from point O to side MN and mark the intersection point as P
   
3. He will draw the circle centered at point O which will pass through point P
   

Which part of Vance’s plan requires revision?