Think the Pulisic deal was a bit of an anomaly because circumstances fell into place for us. Otherwise, other clubs would be doing those kind of deals every January etc.
Also, those names that Matt Law mentioned, I'm not even sure how many of them are actually obtainable in January, if any at all. They all look more like summer transfer targets and furthermore, 150 million is likely only to get us 2 players max from that list (for the love of god, no Zaha please!).