Rows or Groups?

I've been on Team Groups for a long time. For my upperclassmen, this works well. However, some of my younger students were having a hard time focusing during whole-group instruction. I went for a compromise - most of my tables are in an L-shape with groups of four. 

The L shape solves the issue I had, which was when I had group pods some students, by the nature of the design of the class, had their heads to the board and didn't always turn around when they needed to. 

The L shape solves the issue I had, which was when I had group pods some students, by the nature of the design of the class, had their heads to the board and didn't always turn around when they needed to.