“The 2014 penalties were narrower in scope andfailed to deter Putin from further land grabs. Now, administration officials say they learned key lessons. Among them: They needed to share more information with the Europeans in advance and to work together on aligning their reaction for maximum impact.
“We were more resistant to doing that in the [Obama] administration, for all the obvious reasons of trying to protect sources and methods,” a senior Treasury official said about intelligence sharing. “But being able to do that, to find a way to get the information to our friends and allies, was critical.”
That strategy was made easier by the fact that Biden administration officials now overseeing sanctions became thoroughly familiar with the nuance of sanctions policy during Russia’s last military campaign and developed extensive relationships with their European counterparts.”
…”The U.S. took pains to carve out Russian energy as much as possible from the punishment, in part because any direct actions focusing on oil could result in higher global prices — and thereby even help the Russians, but also in recognition of Europe’s dependency on Russian oil and gas. U.S. officials also worked with allies and major natural gas producers to ensure that Europe would have adequate energy supplies if Putin decided to cut off shipments that flow through Ukraine.”
https://www.politico.com/news/2022/03/02/united-states-russia-sanctions-00012849