I'm not suggesting Lee be put in the starting line up cause like you said, they'd be too small and with Lebron literally living in the painted area, it will make it harder for them to defend, but the flip side is they aren't getting enough out of the role players, so they may risk putting their defense at a disadvantage to get more offense.
The way I saw it last night, Cle should've put Thompson on Andre and put Lebron on Lee cause that pick and roll was killing Cle and Thompson cannot guard Steph on the switch. If they have to switch, Lebron is the better defender in that situation with Lee playing. I think GS will be making many changes on offense and defense tomorrow. Even with Cle up, outside of Lebron and Delly (last night), their role players haven't been able to get into a rhythm either, so they have much to improve on as well. I think whoever wins tomorrow wins the series.
The way I saw it last night, Cle should've put Thompson on Andre and put Lebron on Lee cause that pick and roll was killing Cle and Thompson cannot guard Steph on the switch. If they have to switch, Lebron is the better defender in that situation with Lee playing. I think GS will be making many changes on offense and defense tomorrow. Even with Cle up, outside of Lebron and Delly (last night), their role players haven't been able to get into a rhythm either, so they have much to improve on as well. I think whoever wins tomorrow wins the series.