Of course Naifeh supports this move

Harwell calls for streamlined process, drops 12 subcommittees | Nashville City Paper:

State House Speaker Beth Harwell abolished 12 subcommittees Thursday in her first attempt to make good on her promise to streamline the labyrinth-like legislative process.

Harwell, the Nashville Republican who was elected as the new speaker at the start of the 107th General Assembly on Tuesday, did away with all but one subcommittee for each of the House’s 13 standing committees.
. . . .
Rep. Jimmy Naifeh, D-Covington, who often used the subcommittee system to kill legislation when he was House speaker, said he supports Harwell’s restructuring.

“She’s the new speaker, and if there are changes to be made now is the time to make them,” he said. “I’m going to be open to the idea. There’s always room to change things. You don’t do something just because it’s always been done that way.”

Even though this sort of thing limits the legislative tricks available to Harwell and Republicans, it is a great means of increasing transparency and efficiency.

Say what you mean, mean what you say, do what you say you'll do.