This was from a story in The Washington Post:
In testimony before the House Budget Committee yesterday, Alice M.
Rivlin, who was President Bill Clinton's budget director, suggested
splitting the plan, implementing its immediate stimulus components now
and taking more time to plan the longer-term transformative spending to
make sure it is done right.
"Such a long-term investment program should not be put together
hastily and lumped in with the anti-recession package. The elements of
the investment program must be carefully planned and will not create
many jobs right away," said Rivlin, a fellow at the Brookings
Institution. The risk, she said, is that "money will be wasted because
the investment elements were not carefully crafted."
It's not a puffin, but here is a good post on the stimulus from Arnold Kling. And read Marc Ambinder on which parts of the bill will take how long.