FWIW, IBM knows they are a dinosaur and are trying to rectify that. They are hiring competent execs from outside and putting them in very high positions in the org in an attempt to remake IBM to be a more nimble tech company.
I'm not sure that'll be enough to save them. I've known various people who've worked there in different departments - dev, accounting, UX - and none of them had anything good to say about the company or its culture. My impression of IBM is that it's completely rotten.
Yet they keep leading in patents per year, being the only major alternative to Oracle in Java, one of the major contributors to key Linux subsystems (kernel and everything else mostly done by Red-Hat like GNOME and GCC),....