That suggestion won't fix anything and would only make a bigger mess.

There are 2 options to improve TSA lines:
- Require that TSA staff actually work and stop playing around on their phones, having personal conversations or otherwise staring into space on paid time. Get rid of BDOs and put them back on the line. Remove the TDCs, they serve no useful security purpose. Make the STSOs and LTSOs work. You can lead/supervise and screen at the same time.

or

- Disband TSA. Return airport screening to the airports and airlines using private contractors as was done before 9/11 and is done almost everywhere else on the planet.

In both options, get rid of the pointless and unneeded limits on liquids and forcing everyone to take off their shoes. Relegate body scanners to a secondary screening method at most. Walk through metal detectors, baggage xray, random ETD swabs and random patdowns are more then enough. Anything more then that is nothing more then pure insanity and paranoia.