Select one that is NOT correct about Supply Chain Management $($SCM$)$ trends.

Green SCM is a major trend due to increasing responsibility, regulations, and pressure on the sustainable supply chain.

Blockchains are considered for greater transparency and trust among supply chain partners.

Self$-$driving vehicles and drones are now increasingly being used in supply chains.

SCM adopts lean principles to improve the performance of the supply chains.

ERP systems capable of real$-$time data updates are being emphasized more.

Outsourcing has always been preferred for lower labor costs, regardless of other reasons.