I'm not overly fussed that things aren't happening immediately. It's still early, and we're in a situation where we have a new manager who has not yet been able to interact with the squad.
If we're looking for bad signs, how about this though: All of the players we are actively pursuing come out of Ajax under EtH (or in Eriksens case, trained with them). Evidently, the list of options is down to players EtH knows directly. Is the confidence in the club's scouting department now so non-existent that they've simply been more or less shunted out of the process? If so, maybe there are good reasons for that and maybe there aren't, but in either case it's cause for concern.
Of course, familiarity with EtHs system and so on makes these players extra attractive, but there's a difference between that and focusing solely on players with that background. But while there are lots of rumours about other players, the only ones where there seems to have been concrete initiatives from United are Timber, Martinez, Antony, De Jong and Eriksen. That looks like more than just the tendency of the media to jump at the Ajax link?