After leaving SOM, Strabala joined the Houston, Texas, office of the architectural firm Gensler in 2006.

While at Gensler, Strabala has been reported to have led the design of the 128-story Shanghai Tower and to have completed the "bulk of the design work".
Gensler, however, claims that the tower is not Strabala's design.
According to Gensler in a lawsuit it later dropped, "Gensler, not (Strabala), is the source of the architectural and design services rendered in designing the Shanghai Tower."
Art Gensler, founder of Gensler, credited Jun Xia as "designer of the building (Shanghai Tower)".
Xia was also credited as having "helped the ﬁrm score the Shanghai Tower contract and led the team’s work on it", and as "the design principal for Gensler on the project."

Strabala also has been credited for leading Gensler's efforts in designing Hess Tower (Houston, 2010) and the Houston Ballet Center for Dance (2011).
However, Gensler has claimed that "'Gensler, not (Strabala), is the source of the architectural and design services rendered in designing Hess Tower'", and that Strabala was but "'one of many members of that Gensler team'" that designed the Houston Ballet Center for Dance.

"In March 2010, before the [Shanghai] Tower was completed, Strabala had a falling out with Gensler and his employment with that firm terminated."
After leaving SOM, Strabala joined the Houston, Texas, office of the architectural firm Gensler in 2006.
While at Gensler, Strabala has been reported to have led the design of the 128-story Shanghai Tower and to have completed the "bulk of the design work". Gensler, however, claims that the tower is not Strabala's design. According to Gensler in a lawsuit it later dropped, "Gensler, not (Strabala), is the source of the architectural and design services rendered in designing the Shanghai Tower." Art Gensler, founder of Gensler, credited Jun Xia as "designer of the building (Shanghai Tower)". Xia was also credited as having "helped the ﬁrm score the Shanghai Tower contract and led the team’s work on it", and as "the design principal for Gensler on the project."
Strabala also has been credited for leading Gensler's efforts in designing Hess Tower (Houston, 2010) and the Houston Ballet Center for Dance (2011). However, Gensler has claimed that "'Gensler, not (Strabala), is the source of the architectural and design services rendered in designing Hess Tower'", and that Strabala was but "'one of many members of that Gensler team'" that designed the Houston Ballet Center for Dance.
"In March 2010, before the [Shanghai] Tower was completed, Strabala had a falling out with Gensler and his employment with that firm terminated."
Marshall Strabala