Not sure how you can drag them three into it. Broad and Tremlett haven't played that much ODI cricket. And Harmison more often than not was a very good bowler for England.
Nonsense, Harmison played 41 ODIs, the first 10 in which he was utterly and totally useless (5.57-an-over, average 50.55). He was half-decent in the summer of 2004 (11 games, 6 good, 5 bad), and had a pretty good summer in 2005 against Australia (7 games, 4 good, 2 bad, 1 absolutely abysmal). Other than those handful of games, he was absolutely ****-poor: in those first 10 games, in South Africa, in Pakistan, against Sri Lanka last summer, and worst of all in the Champions Trophy.
So basically that's 12 good games out of 41. Harmison was never a good enough ODI bowler, because for the vast majority of the time he lacked the requistite accuracy, and as a result struggled with the one-day wide rule.
As for Broad, does his domestic record (added to the fact that mostly he's not even been deemed good enough to get into the Leics side) not suggest to you that he's been pretty hopeless to date, in addition to his brief ODI career (which he should never, ever have got anywhere near).
As for Tremlett, he bowled crap in his only ODI, as he has done most of his domestic career, profiting often from the excuse for a pitch at The Rose Bowl.
Comparing all of the above listed to Martin Jenkins is a joke. He plays county one day cricket. Hardly up to International standards.
And you don't know that unless he gets picked in ODIs. The bowlers I listed have, and have proven (to date in some cases) woefully substandard. Martin-Jenkins' domestic career is far better than those useless bowlers.