It grinds our gears that brands are always looking to cut costs and force as much of their budget into media dollars as possible.  We see them cutting tech, creative & agencies.  But cutting from the wrong area can be detrimental to the efficiency of your media budget. Its ok to pull from media spend and keep the tools you need. Here is some food for thought as you are looking at being more efficient with your spending:

Don't cut creative: Regular creative testing and refreshes is super important!  You cannot scale campaigns without scaling creative.  Creative fatigue leads to less efficiency.  Its worth spending less on media to have adequate creative
3rd Party Data providers are helpful:  In B2B its almost impossible to reach your customers outside of LinkedIn & paid search without a data provider/audience tool.  The separate line item for data is important. Trust me.  Also, Dear Finance Folks... you can either pay for good data... or have those data fees hidden within google & Facebook where you can pay 3x for the audience and then 100x for the poor performance.  You choose.
Measurement tech drives efficiency:  If you are running on more than 3 channels, its time to graduate from Google Analytics.  GA4 sucks anyways.  If you or your agency can't improve results by the 3% of media you are spending on tech.. well that's a bigger problem.  Being informed, helps drive efficiency.
You get what you pay for with agencies: If you want to run performance max campaigns on autopilot and not give a crap about lead quality... /rant.