The Raiders selected Mack fifth overall in the 2014 Draft from the Buffalo Bulls, and Allen has admitted that they want to put as much on his plate as possible to get the 23-year-old ready for his rookie campaign.
"We've got his head spinning right now," Allen told CSNBayArea.com.
"That's a good thing. We're going to try to throw as much at him as we can throughout the rest of this off-season and really even into the early part of training camp.
"Then at some point we'll settle down to the things that we can execute as a team and execute at a high level."
Mack recorded 100 tackles, 10.5 sacks and three interceptions for the Bulls in the 2013 season.