I wonder if his ability to do things like that consistently is part of what the doctor was speaking of when he spoke of how his athleticism would be a big help to him.
He sure does have a lot on his plate - but neighsayers to the contrary he already has very major accomplishments - like the China/US climate change pact, the Syrian chemical weapons deal, the opening with Cuba where Kerry was involved with the Vatican, and putting together the anti-ISIS coalition including many regional countries, which is an accomplishment no matter how things eventually work out. Plus there are several accomplishments that completely missed the national media -- such as the Sri lankan papers mentioning Kerry was key to the long term President leaving office when he narrowly and surprisingly lost the election. Compare that list to HRC's list.
As to the value of them - consider that others have claimed credit. Self serving people and their allies don't claim responsibility for failures! (Clinton in her book gives herself more credit than JK for the Syrian deal - calling his words a gaffe and making the case that she told Obama to jump on Putin's offer - note her willingness to take credit from Obama and Kerry and to increase Putin's credit just to give herself a major role. Note she did not then mention Kerry's diplomatic negotiations to make the deal real. However, showing even more chutzpah was Michael Oren who claimed it was an Israeli defense person's idea!)
In fact, one of the things that gave me the most hope on Iran was that Clinton allies fed the story that Jake Sullivan was the key American behind them -- and that, though he was then working for Biden, HRC's fingerprints were there. Now, Sullivan and William Burns were the two administration people who had some of the early secret meetings, but the entire path in Oman was something Obama worked using the then chair of SFRC. The article then went on that later, even though he was not part of the team, he went to Geneva and had a big role - especially as he was more skeptical than others (I don't see how that makes a deal when one didn't exist.) He is now a key FP person with Clinton. In fact, the key Americans are easily seen as Obama, who risked the anger this was obviously going to cause, Kerry, Secretary Moniz, and Wendy Sherman.
I'm sure many others, including Sullivan had important roles, but the article elevated him mostly to increase the role that HRC can claim. (Note that Kerry graciously spoke of the Iran process beginning when she was Secretary of State. )