In confirming their place at the top of the table, Saracens booked a semi-final berth for the fourth year in a row and will now welcome Northampton Saints to Allianz Park next weekend.
And while McCall believes there is plenty of room for improvement on that showing, he was quick to pay tribute to the whole squad in getting them this far.
"It was a bit mixed. There were times we were very good and there was a 20-minute period in the first half when we were really on song and scored a couple of tries," he said.
"Credit to Bath, they had a lot to play for and they really came back at us.
"We had that opportunity to put the game to bed at the start of the second half, which we did not take. There was real life about us but we were not as precise as we wanted to be in a few things.
"It is a big achievement for us and something we are really pleased with. Four years ago when this project started, the one thing we craved more than anything was consistency. Saracens had been so inconsistent as a club through the professional era.
"This will be our fourth consecutive semi-final and the first time that we have been top of the table at the end of the regular season in Saracens' history.
"We used 44 players during that time so it has been a real squad effort. We talked last week about wanting to show growth and progress as a group and there were signs that happened."
Bath began the match with hopes of a top-six finish if they could secure victory and Gloucester Rugby could triumph over Exeter Chiefs.
As it was, the Chiefs won a thrilling contest 40-39, but having found themselves 13-0 and 20-7 down, coach Mike Ford believes his side showed there is reason for optimism next season.
"I think we showed a great character to get back to 20-14," he said. "I thought we had them and they might possibly have made their replacements too early, they took off some influential players.
"We were really pleased with the character. At one stage, I honestly thought that without the character we could have got a good hiding. But the boys stuck in and dug in.
"At half-time we talked about playing the last two quarters as two 20-minute games and we knew Gloucester were winning at that point so had everything to play for.
"We were just one try away at one stage. It is disappointing it came to the last game of the season but is disappointing when you look over the course of the season, we have let points slip against too many teams below us.
"We have set a good foundation this season, but maybe the spectators and the people are not directly involved cannot see that. We have worked on our culture a lot and put a few things in place that hopefully that will bear fruition next season."
Saracens: Wyles; Ashton (Maddock, 71), Tomkins, Farrell, Strettle; Hodgson (Taylor, 55), de Kock (Wigglesworth, 52); Vunipola (Gill, 61), Brits (Smit, 55), Stevens (Nieto, 61), Borthwick (Botha, 52), Hargreaves (Kruis, 71), Brown, Saull, Wray
Bath Rugby: Devoto; Agulla, Williams, Eastmond (Biggs, 41), Rokoduguni; Heathcote, Claassens; James (Catt, 61), Webber (Batty, 46), Wilson (Perenise, 61), Day (Spencer, 49), Attwood, Louw, Mercer (Gilbert, 58), Taylor (Koasta, 73)
Tries: Ashton, Vunipola, Farrell
Penalties: Farrell 2
Tries: Webber, Agulla
Conversions: Heathcote 2
Referee: Martin Fox