The Northern Irishman was presented as the new Reds manager on Friday morning after the Merseyside club settled on a compensation package with Swansea.
But he will not be able to raid his former club for talent over the next year.
"We have got some protection on Brendan coming back for our players in the initial period, which I think is the right thing," Jenkins told talkSPORT.
"He has got a timescale to assess things there and that is going to take him a while so I've got no worries there. We have got a 12-month respite."