I think they're going to back Hilfenhaus and I'd do the same thing to be honest. Hearing plenty of whinging about how his outswinger hasn't been that effective at test level yet, it's too loopy and swings straight from the hand etc, that's pretty irrelevant to me.
Fact is the guy has some very strong fundamental qualities for a fast bowler, he's sharp and he appears quicker to the batsman than he does on the speedgun due to the 'heavy ball', he's generally got good control and he can be counted upon to execute a plan and he's very fit and strong, looks like he could run in all day. The fact that he also bowls outswing is just the icing on the cake imo.....stick with him.....I know his figures in the first couple of tests don't stand up that well against Siddle or Johnson's....however he's bowled some very good probing spells and I don't think he's looked out of his depth at all.
As for Lee coming back, I'm a bit pessimistic as he did look awfully flat at times against India and South Africa...However I suppose at the end of the day there were some doubts over his fitness at the time (mind you I didn't hear any complaints about his fitness when he was knocking over Kiwi's for fun
). And he was our best bowler for the preceding 2 years...so if he is able to prove his fitness he should atleast tour.
And I like the idea of our tail reading Johnson, Lee, Siddle , Hilfenhaus.....has a very solid look about it.