Not a proper Gimmick
A Big Blog in the bloc its how he has to be described for his appearance. Bobby Lashley is one big time body builder. Erupted in the scene late last year and improved his wrestling skill ever since that. He might easily be the future WWE, but his public appeal hasn’t improved even-though his performances are. Has got a good finisher in the form of Dominator but still his gimmick and the role he plays in WWE doesn’t underline his presence, even the screen play writers are still finding a suitable role for him and till ask to continue with JBl and Booker T.
To assign a temporary role they have modified Booker T's Gimmick as King Booker, but the problem is Booker T's value in the WWE has gone down considerably and doesn’t look like a star for whom people will turn up for the show. When that’s the case there is no point in lashley having a gimmick with Booker since its gonna have no impact on his career what so ever. The writers should make sure a nice soft gimmick be given to him or something like a formation the way Batista had would do.
I would still suggest a Tag role be better for him rather than a dominator gimmick to start with. He as a powerful tag team partner with another youngster would do a world of good for his confidence as well as to improve his skill. The best case his transfer him to RAW and let him partner with Gene Stinksky for a dominant tag team.
Gene is another wrestler who with no proper gimmick lost his way completely. If these two can be tagged together as face gimmick something like APA they can catch some public attention in turn improve their skill and learn what business is all about. But rather if he is led opposite to rather less crowd pullers like Booker T I am afraid he might be another young wrestler found wanting to poor management.