The first picture is of some scientists showing Trump a model of coronavirus and how it works; I fail to see that as anything more than useless publicity. . . . His job should be to implement policies recommended by who deal with this on a daily basis, and get everybody on board with the implementation, not an initiation in virology.
I think you're wrong. Leaders of countries reassure the public when bad things happen. . . . He's lending his political and executive authority to reassure the public that the government he's running is doing its job to help them and to protect them and will continue to help in the future.
Clearly the response to an international medical emergency must be determined by the experts. Various U.S. federal agencies―the Departments of Health and Human Services (the Centers for Disease Control and Prevention), Homeland Security (the Federal Emergency Management Agency), and Veterans Affairs (Veterans Health Administration, which operates hospitals for military veterans)―employ career government experts who, I suspect, are as capable as any in the world of responding to the public health threat associated with a new virus such as this one and they, in turn, have access to an enormous nationwide medical infrastructure as well as the very large number of private practitioners who inevitably will provide the treatment and report the outcomes of the vast majority of patients.
Having said that, coordination of a medical (or other) national emergency by a politically-designated White House representative
can be useful, if that individual has sufficient experience at the federal level to know where to find the relevant agency resources―it's not always obvious to even the experts in various agencies what resources are available elsewhere in the government―and the clout to overcome bureaucratic obstacles to exploiting them. Ron Klain, the chief-of-staff to former Vice President Joe Biden, performed this function when the Obama Administration was responding to the ebola virus, despite having no prior experience in public health, and by the time his assignment ended my impression is that his contribution was considered quite successful by the nonpartisan career experts.
Vice President Pence is probably less qualified than Klain for this kind of role, but in an Administration which is notably lacking in political appointees with experience at the federal level he probably is doing as well as any of the other possible candidates. And, despite President Trump's sometimes preposterous and always politically-motivated comments about the federal response, Pence seems to be doing a reasonable job of explaining the expert opinion to the extent that he is able to understand it. Whether he is able to use his influence to facilitate the federal response is anybody's guess.