I'm not sure I go along with the obvious undertone of "well, of course we should be top of the league ... just look at the squad !" Let's just consider the individuals ...
Amos .................... decent signing, not shone though (nor has he had to either)
Darikwa .............. not too many celebrations when he was signed up
Whatmough ..... fair do, this mon's a great signing
Watts ................... young lad on loan, at first, looked like he could be related to Bambi
Tilt ........................ played for a relegation side last season (us)
Kerr ..................... again, fair do, decent signing
Pearce ............... looks great when fit, but some think he can't defend
Bennett ............. I'm sure he'll play a full 90 mins soon
Cousins ............. looked to be settling in as a workhorse
Naylor ............... was due to go to League 2 before we snapped him up
Power ................ what's that about never going back ?
Bayliss ................ we all thought that PNE had dumped on us here
Shinnie............... decent Championship player ... if only he could get a place in the team
Massey ............ least said (or Hampton will be onto me!)
Lang................... a star ... yet n-one snapped him up after his contributions last season
Keane ................ same as Tilt, played for a relegation side last season
Wyke ................. can only score goals when McGeady crosses for him
Magennis ........ written off by many on here after half a dozen games
Humphrys ....... superstar signing from Rochdale ... has "Espinozaitis"
Edwards ........... looks great when he's on it .. which he sometimes is
McClean .......... some wouldn't have had him here in the first place ... others still want him gone
Aasgard ........... a future star
McGrath ......... who ?
So, be fair KDZ, at the start of the season, there's no way that anyone (many?) thought this to be one of the "best squads in the league" ... and even so, it wasn't as you say "afforded" to him ... it had to be selected and then moulded into what it is.
Sorry, but I just felt it a little lazy to suggest that the manager has somehow been fortunate in being given a squad of league-beaters. He wasn't, and they weren't ... though given the work he's done with them (with the rest of the coaching team) they very nearly are now.
At the start of the season everyone was very excited with the quality of player we were bringing in. Every other manager was complaining that we had out bid them for the best players and before a ball was kicked I'd have said with the exception of Ipswich we'd had the best recruitment.
Amos - 2nd in POTY at Charlton, rejected contract extension, Man U wanted him for 3rd choice.
Darikwa - experienced champ player, did well last season in L1
Whatmough and Naylor - 2 of best players for Pompey both rejected contracts there
Tilt - impressed at this level for us and Blackpool, never played at Rotherham
Watts - iffy at Plymouth but impressed in preseason and highly regarded at Newcastle
Kerr - 600k and highly regarded in Scotland, looked good in Europe qualifying rounds
Bennett - proven in Championship for year prior to injury. Dropping down.
Pearce - impressed last season before injury. Lots of assists from defence.
Cousins - established championship player dropping down.
Bayliss - not done anything in Champ but previously looked good enough at this level PNE spent 2m on him.
Shinnie - player of year for Derby in Championship dropping down.
Power - proven at this level regular at Sunderland and us.
Edwards - done well at this level for Peterborough but hot and cold for Ipswich.
Jones - impressed in Scotland before lost in shuffle at Rangers. Showed lots of potential in L1 for Sunderland.
McGrath- very highly regarded in Scotland
McClean - proven champ player, dropping down.
Keane - impressed for us last season
Lang - impressed last season
Humphrys - impressed in L1 last season
Wyke - 30 goals for Sunderland
Maggenis - scored 20 in L1 last season
Not everyone turned out as expected but on paper that was stronger than nearly everyone. Any manager who had budget to recruit that lot in L1 was going to have an advantage over most of the division.
Having a better set of players doesn't mean you'll automatically get results but it is a big advantage.